I'm 16. I've never had my first kiss, I've never even had a guy like me in that way
No offense but I don't see how this is a problem...don't let social pressures get to you, honestly I was 21 before this happened. I'm not like, going to off myself on a bridge. Besides, if nobody likes you in that way because "You're too ugly" then you're better off without. A mature man would be able to look past all of that and love you for who you are. It just depends on how patient you are willing to be. Boys around your age (not to generalize but...) only care about how "sexy" their girlfriend is with all them ragin' hormones.
This may sound harsh, but you have to accept and embrace the fact that your life is not going to be "normal" like other teenagers. The only thing you can do about that is do what YOU love. Who cares if you can't play sports or go jogging or exert yourself physically? Do something you enjoy doing, whether it is sitting on a park bench or playing chess or reading a book.
There is no such thing as a "normal" life, life is what you make of it.
As for "dying" don't spend your time counting your days down. I know this sounds corny (and I hate corny) but you should appreciate the time you are spending with family and friends now, don't dilute your thoughts of being alone, it will just make you feel sad and unhappy.
Don't dwell on your lack of time, make the most of the time you have.
It's like the time we have with our bettas. They only live (on average) 3 years? I won't waste my time thinking about "Oh lord they only have x many years left". You are aware of their imminent death, and it hurts when they go, but you'll always be left with good memories.
You do live in Canada right? What province? Surgery is free in Ontario. There are some jobs and volunteering positions for "disabled" persons (or whatever the hell the politically correct term is,ugh). I have a friend with mild Vrolik syndrome who is constantly wheelchair bound and he has a light desk job at a retirement home. I would also love to get an AB betta one day as well, I don't nearly have as many regular bettas as you do, because as a poor University student with a lame student job, I can't afford it either, haha.
Anyway, life is very frustrating sometimes, but the key to happiness is being able to move forward with friends, family and loved ones.
Finally, remember that I (and everybody else) will always love and care for you with the light of 1000 suns. DON'T FORGET THAT.