I saw this quote by William Gibson:
“Before you diagnose yourself with depression or low self-esteem, first make sure that you are not, in fact, just surrounded by assholes”
If you are then step 2 is to consider the question:
‘Why are you there?’ … what benefit are you getting from being in this situation?
‘What if you left?’ … imagine the consequence of leaving this situation with these assholes and notice any fears.
Find the courage to face into these fears and move towards and through them
Look again at the people surrounding you.