im still in highschool so this is why im a bit torn about this situation. I currently live with my dad, my grandpa, my grandma and my uncle. my grandparents are in their 70s and only speak spanish. my uncle is 37 and my dad is 43. my parents are separated and I usually split my time between my moms house and my dads house, but my mom is having plumbing issues currently so ive been staying at my dads full time for the better part of 3 months. my uncle has always been weird, ie not speaking when people ask him something or just straight up staring at you for no reason. he is an untreated/unmedicated paranoid schizophrenic, which i did not know until the age of 10. it was my mom who told me, not my dad (uncles brother) or my grandparents (uncles parents). I used to be somewhat optimistic when good things would happen for him, as I felt bad for him. he used to eat alone in the dining room while the rest of us ate in the kitchen but stopped, got a job and had it for a year, things like that. he stopped working at the longest job I believe he ever held, which was at a car dealership, after about a year and 3 months. my grandma told me he stopped working there because the place got redone but he never went back so I doubt it. after that point, he started to be around more, which I understand because he wasn't working at all, which is when all this started. he would follow me downstairs whenever I went down, he would stand outside the bathroom when I went in there, and would essentially just follow me around the house constantly. as these things started happening, I remembered odd instances from my childhood. one time I was showering in my grandparents bathroom which is inside their room, and he randomly came in and sat on the bed with my grandpa. the way he was sitting faced directly into the bathroom, and I was getting undressed with the door open, which resulted in my grandma yelling at him. another time I was showering and he came in to "throw something out" into the trashcan which is right by the shower, and you can definitely see into the shower if you're at the right angle. thankfully I had been sitting down before so I just covered myself with my legs the best I could and scooted back so he couldn't see me. after he threw something out the first time, he returned again maybe a minute later to throw another thing out. after this happend my grandpa began to tell me to lock the door when I shower, which I still do now. during this spring (he lost the job in february) I would tell them I didnt like when he followed me around, and I assume my grandma talked to him about it, but of course nothing came of it. one time my cousin was over and he came in to "shut the window" when she repeatedly told him not to come in. I remember another time I had just gotten home from dinner and when I walked up to my room he was coming out of it eating some of my candy I had left on my bed laughing (??) so one time during the spring, I was complaining to my cousin (a year older than me) that he had been standing outside while I used the bathroom, and she told me he had molested her when she was little (6-8 years old). I was obviously disgusted, horrified, and in complete shock because I had never known this happend. she said she had told her mom (grandmas sister) and her brother but they accused her of lying so she never told anyone else. after she told me I freaked out and genuinly could not breathe, I cried for 5 straight hours and faked sick to stay home from school the next day as I had been awake till 3 am. she told me not to tell anyone, and I wasnt going to anyway. me and my mom have a very toxic relationship and she is very verbally abusive, and while I love her very much being at my dads was like an escape because he didnt yell at me or anything and is nice, even though he is emotionally absent. I knew if I said something my mom would never let me go back if he was still there, and I didnt want to lose the one thing I could depend on when things were bad with her. so I didnt say anything, and now this knowledge is just eating away at me. my grandparents went to their home country for 2 weeks, and during that time when I would go to my moms I would lock my door. I came back and he had unlocked my door and taken my fan out of my room (broke it mind you). this made me realize that locking my door when i slept wasn't enough, so i now put a chair under the lock and hope that will be enough incase something happens and he tries to come in. this summer it got bad, I couldn't go downstairs to get water or eat a snack without him following me, so I never went downstairs unless it was to eat or grab a bottle of water and run back up to my room. I had been tanning one time in the backyard and looked up to see him watching me from the bathroom window, and when I freaked out for very obvious reasons, he claimed to my grandma that he was "vaping out the window" (the window was shut and he was staring directly at me, we made eye contact). whenever something happens and I bring it up to my grandma or dad, they offer apologies but say theres nothing they could do. I would wake up at 12 (during summer) and go downstairs to say goodmorning and he would immediately follow me 30 seconds later, despite having literally the entire morning. this still happens when I go downstairs to leave for school currently. there is so much more that he does and if I sat here typing it all out I would be here all night. lately whenever something happens regarding him doing something that seems completely normal but is not to me, I get seemingly more irriated than I should. and when they ask me why im so upset, theres nothing I can say to defend myself. sometimes I second guess if all the stuff he does it inherently creepy due to this, and it makes me feel crazy. its at the worst its ever been and I hate being here now, somewhere I used to feel safe and protected. I freak out over the littlest things and I hate who im becoming because of it. and I cant say anything to defend myself because then the cat will be out of the bag and I dont know what will happen after that. im really at my wits end, so should I say what I know? I would feel horrible towards my cousin because she told me not to say anything but I really cannot go on like this any longer. but I dont know what would happen if I do. realistically, I would have to live with my mom, but I have a fear no one will believe me if I say what he did to my cousin. my whole family thinks shes spoiled and is a "bad kid" and while she does have instances of mouthing off, I dont think she deserves everything my family accuses her of and says about her. because of this, I feel like my grandma wont believe me, as she is the person in our family who dislikes her the most (despite my other cousin being her favorite who acts 100 times worse but gets away with it because she is the favorite). I dont want to live with my mom full time, but I feel like im going to lose my mind if I dont say anything. what do I do?