To understand that Bisexuality really exists. Growing up and in my teens in media and pop culture it’s seemed that you either were gay or straight, no other option.
When someone is abusive or hurtful to you, 90% of the time it's not your fault. It's that there is something wrong or something broken in them. They are malfunctioning and it's necessary to understand that.
The other 10%.... Well, own that and fix your mistake.
But a very large majority of the time, it's them being broken and wrong.
People just don't care about you that much, if you go into the street wearing nail polish as a a male presenting person no one will care if you don't act weird about it. Same thing for shaving your legs.
Family might care though, what helped me was understanding that I spend a few days per year with my family maximum, but I spend that whole time with myself. So who cares what they think be yourself.
I'm not sure it's ever too late to learn anything. Unless you are dead.
But I do wish I'd been able to feel ok about my body as a teenager, the anorexia was harmful to my bones & heart, so I guess technically I learned too late to value my body, or learned it too late to avoid damage anyway, though I'm pretty healthy overall now. I think almost all teenagers are uncomfortable with their looks in some way, at least they were back then.
Your high school diploma. Nobody ever asks for it. No job I have ever held has asked for proof that I completed high school which I didn't. My last job had a class they wanted me to take at a night school and that's when they realized I didn't have it after 7 years of competent, exceptional work, so they just shrugged and got me in there anyways
You can just ask people out. You can just ask to kiss someone. I was in my mid 20s when someone told me the first one, and late 20s when someone told me the second one. Dating got a lot easier after each revelation.
I'm a perfectionist and I realized I've been making life too hard for myself. Choosing a low bar for success but keeping the ceiling high has felt like a much healthier approach.
I'm glad I know them now, because for the longest time, I thought I was in a fucked situation whenever my finances were tight. Like if I was due a bill and my pay cannot cover it because of the dates being different. It used to make think that I had to take a hit and just roll with it. But no, some of my bills allow me a brief grace period where I can gather resources in time. Sometimes I'll even stretch my money beyond some grace periods if it means that I can upkeep some resources then just pay the difference later.
I was never going to "find myself" and so I should have just gone to college with my friends for computer science and made the good money when jobs were easier to get even though I had no interest at all in it. Hindsight is 20/20 and all that jazz. Now I'm a worthless schmuck in a factory living in someone's garage paying their mortgage in rent prices.
All my interests are hobbies, some of them even too expensive for me to do lol they're nothing you can monetize.
Relationships can be anything you want them to be. I wish I spent less time trying to figure out if someone liked me and just tried to have fun with everyone I met.
The thing that comes only with age is: to not give a fuck.
When we learn that it doesn't matter we can all be little old people who are purple mohawk headed, wearing clashing neon adidas jumpsuit with zebra primted boas.
Manage your finances. Know where every penny goes. Budget as best as you can - plan for all of the things you know you spend money on through a year. It doesn't mean you can't spend money on things you like, but it does mean that you know when you can afford it. It gives you confidence and control no matter how much you are making.
"Fake it till you make it" doesn't mean pretend to be happy until you are happy. I committed to a relationship I wasn't happy in, a career I wasn't happy in, and hobbies I wasn't happy doing, all because I wanted the approval of others. A divorce, career change, and hobby swap made me much happier.
Take it sleazy. Not for everyone, but for some people the most productive way of getting stuff done is doing it with less effort. Don't go too fast and burn out