You’re going to have a vocal minority that hates you regardless of anything you do, and they will find whatever insecurities you have and dig at them, because they know it hurts.

I see a ton of people here, giving you advice and support. It’s so easy to forget about all of those positive voices when the few hurtful voices are so loud and so very painful. Try not to focus on those, and focus on the more numerous voices cheering for you.

I don’t have any advice for your looks. I’m a cis gendered straight guy with about as opposite of hair and build as you as can be hahah. I think listening to some of the other great advice here about focusing on one thing at a time, small changes, etc will go a long way. Once you build a few things you feel good about, your confidence will grow and that will carry you beyond what any advice will.

Good luck, my friend.