Hiya, sounds like we've been through some similar stuff. I know how scary it feels to walk alone. (anytime of the day really, especially if I need to pee). People are scary, especially prejudiced cishet folk. Usually it's best to try hard to have someone (anyone) you know with you. I actually don't use the bathroom alone in public anymore unless there's a "family bathroom" or single stall bathroom, because I am legitimately scared of what people would do. Be safe. If you need too, I'd recommend carrying some kind of self defense tool. Or holding your keys in your knuckles (that's what I do).

I definitely know how it feels to have people not respect your pronouns or even your name. You're already doing better than me by keeping a level head. (I've blown up at quite a few people about it). My sister, after about two years, still won't call me by my name and refuses to stop referring to me as her "sister" (I gag a little just typing that.). I've also yelled at my mom and grandmother a few times because they said my pronouns were too "difficult".

But I want you to know you're not alone
And that you're identity matters. It's real. And it's yours. And no one can tell you otherwise! You are strong.

You had so much courage to come out and that's already a big step. I hope your friends will come around, and if not I hope you can build a circle of friends who will respect you. And we're here for you too! Cheering you on!

Things will get better!
I'm sending you support! (and if you're okay with it, hugs too!)
-Aren