That does provide a delivery mechanism, but misses out on the community that is suggested by OP.

You’ve already got some good advice but in no particular order:

1. You are much more articulate than a lot of people. You can read and write better than a lot of people.

2. You’ve been at least emotionally and physically abused

3. You know how to work hard.

4. ADHD is somewhat treatable with medication, at least improvable.

What that translates to:

1. no it isn’t too late, especially if you keep working hard.

2. the things you blame yourself for likely isn’t your fault. Therapy, when you can afford it, should be a priority.

3. working hard is so important for employment. Most jobs don’t require high intelligence. Working hard with a good attitude and working with people is so much more important for most careers.

4. learning disabilities suck. ADHD is hard. You can still learn coping mechanisms and find ways or a career that fits better with it.

Life is hard. It’s harder for you than most. It can still be worth living, but it will be up to you to find a way. I think you can.