Its tough when you are underage and have to live in the shelter of your parents and go by their rules...the words that they are using are abusive...."trash"? Its no wonder you have a bit of depression and low self esteem.

Next time they "attack" you like that I would tell them they are attacking me...and being abusive and that it is not helping with my willingness to want to do anything with them.

Are you doing well in school? Are you taking any medications? IMO..it sounds like instead of forcing you to do things you don't want to do they should be encouraging you to seek some therapy and possibly medication that will help your brain chemistry to be more balanced and you may end up being happier and wanting to do things .