Pegasus,
You don't deserve to be shoved in dark places - you never should have been forced into darkness, that was so bad of them. THEY ARE THE BAD ONES, NOT YOU.
The grownup world is hard. When you look grownup and dont feel grownup it gets so painful - when you cant figure it out and dont know what to do to REALLY BE grownup.
Dont give up; dont be mean to yourself. Put the anger where it belongs...on the bad people.
It can get better, it does get better.
Hugs to you Pegasus,
Pixies