I hate being a woman. Seriously. Everything is always harder.
Being a woman is easier , at least that's how I've always seen it, but also the grass always looks greener from the other side of the fence too, so regardless, consider that both genders suffer gender-specific challenges and the only way to overcome them is to be smart and overcome them :) If you ask for help, people generally do try to offer good real-world advice (not necessarily on G@G though!), I'd suggest reddit user groups for more specific or sensitive issues.
I think I fell for the wrong guy
It happens to all of us, you have my sympathy. My advice is that you need to take control of your life and remove the problems from it.
I feel alone
It's okay to feel alone, we all do at some point in our lives, and especially with covid, it's become near impossible to go seek new friendships or company. If you want to DM me, I'm happy to chat a bit but I have a lot of responsibilities that limit my time on here.
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You don't even need wealth to achieve happiness.
It feels like it
It isn’t, despite how it feels. Trust me on that, all or most of that is entirely fixable.
Where do I start
School, either a college or trade school. That will help you gain a career, which can get you out there and meet new people. That money could also be enough to allow you into therapy for your trauma.