Man. It's like people don't want me to express myself
How does not being able to express yourself make you feel?
I feel abused and mistreated
Being able to express yourself is important. If you are around those who don't let you, it might be good to choose new friends. You should be able to be open and honest with people.
You're right it's not OK to treat me like that. I'm going to block them and make new friends who treat me better.
That is good to improve your situation, have you told you current friends how you feel.  I would give them a chance to make things right before blocking them.