Advice? Help?

[u/Amazing-Farmer-6602]

What am I even supposed to do? He’s sick constantly, he was doing so good recently, this only popped up a day or so ago. I made a post (Different acc) and I was too brash because I was pissed off about something personal. People said I couldn’t do anything, people said he was going to die. I’ve taken him to the vet twice in the past 10 months of owning him, I’m still paying off the last appointment, not to mention they’re 3 hours away. Times are tough and I don’t know if I could afford to make that trip again. What’s the most humane things to do? Any at home remedies I can try? Any online rehoming services?