u/Alternative-Sir-2856

So.. I'm eleven going on twelve (my account says higher because I didnt wanna put my real age at first) and i've been dealing with my parents being insufferable. My sister burst into my room, without knocking, and she was like "Shouldn't you be doing your work?" and i said "It's the weekend. Also, why do you guys always barge in? What if i was changing?" and she was like "Well you weren't. Are you gonna start walking and stop talking or do i have to make you go downstairs?" (i was taking dishes downstairs) and I just went downstairs. And then a few moments after that she came in and said "Mom said you have to do your work." and i was like "..Yeah but it's the weekend and i've been doing it every weekend?" and she said "I don't care, do your work." and i snapped and said "Get the fuck out of my room." By the way, i have IED (Intermittent explosive disorder), severe depression, and anxiety, i also havent had my medicine today and im on my period. My parents have always been awful, my mom verbally abuses me and threatens me, she used to hit me but stopped when i started hitting her back. My dad takes her side no matter what and i'm sick of it. I dont know what to do, CPS didnt believe me, my therapist thinks im lying about being passively suicidal because i say it too much, i also SH and did yesterday. I don't know what to do and i cant tell if im overreacting or if this is abuse??