I know how hard life can be to someone in your situation, especially if your family isn't supportive, but even if you don't like me saying it, I'll say it anyway "Hang on!" You're very young, too young! There will always be people who won't accept you and some may even try to hurt you, but there's another world out there and many people who see you as a person and will like you for who you truly are. I'm 49 yo and I consider myself agender, I'm also ace. The amount of bs I had to put up with from my dear parents and first, and only, bf in a time when there was no awareness, or sympathy, for these issues... it was a lot of bs indeed! They tried to erode my self esteem and succeeded partly. Fortunately, I was always too much of my own person and eventually found my own crowd, people who truly love me, after I left college. I can't promise there's hope, but there's a good chance there is if you keep looking for the right people.
PS - Life isn't easy for anyone and most never live to fulfil their dreams, no matter how cis they are, but most only become somewhat comfortable with it somewhere in the 40s or 50s. Don't think you being trans is the root of all your problems and perceived failures, because trust me, we all have problems and failures and they come in all sorts of flavours!