It sounds to me like you had a troubled childhood and I'm sorry about that, but it does seem like you're not "a normal person" either... Kids that are in homes are more likely to have things like neurodovergencies and/or behavioural problems (either those being the reasons the parents couldn't/didn't want to look after them, or caused in all or in part by the trauma of being abandonned.)
People "not acting normal" is usually proof that there's a ton of stuff going on with them inside their mind that just isn't the sort of stuff that comes naturally go you. Your example of the guy lying on the floor when he's tired just reads to me as what I would do 100% of the time where it socially acceptable to do so. Someone who isn't aware of social norms or who just doesn't care about them would also do that if they feel like me.
Also the people saying stuff you're thinking... You've talked about Jesus and geniuses a lot on the forum, way more than is expected for a comic and writing-based platform, it seems to indicate that they are themes you think about quite a bit. If you're anything like you are online irl and I wanted to mess with your head, I'd pick talking about Jesus, geniuses, aliens or simulations and there's be a chance that you were thinking about them at that time. It wouldn't work all the time, but confirmation bias and the amount of times I would talk to you if I were living with you would mean that you would forget all the times I talked about things you weren't just thinking and only remember the weird time I did "read your thoughts". It's basically like when my brother would say "you want to play Mario kart?" when I was thinking that I wanted to play mario kart: at the time, I almost always wanted to play Mario Kart.
Never attribute to a conspiracy something easily explained by actual coïncidence and humans being different to you.
