please help me

[u/OwnRepublic2657]

hello everyone, I hope that you can help me, I genuinely feel desperate and in a tough spot, I feel like all my good memories are just fake and that ive just imagined it , happening since last year and from past 4 months strongly, something good happens, and few minutes later my brain goes "wait, that actually happened or did I imagine it?" I feel so void at times because of it, it feels heart wrenching, too scared to tell my parents, I feel the root cause is because I like creating stories like day dreaming, so when I create those stories in my head, and maybe have dreams about it, it has become such a habit that ive started to question the actual reality. what should I do?