the story of my f

hi! im a 16 year old girl. i currently live with my dad on weekdays and with my mom in my grandparents house on weekends. my dad has cancer and is an extreme narcissist. my moms boyfriend (lets call him tim) is a child molester. my mom is a supporter of a child molester, and im the child. my parents had a nasty divorce when i was about 9 years old. i saw some pretty nasty things like my father holding a shotgun to his head screaming about how he was going to kill himself to my mother and a lot of physical fighting. my mom moved out and got a house with her boyfriend, tim, who she is still with today. i met tim and moved in on a 2 week at each house schedule. tim peer pressured me into smoking weed with him because i was young and impressionable and trying to make my mom happy, and told me not to tell her. i never have by the way. he was a very hot headed man and got angry and screamed at me every time there was a small issue. a few of the reasons i recently got fed up and moved out were... he took my phone and internet for a whole weekend just because my boyfriend dropped a smoothie off for me at the foot of the driveway while i was having a terrible day, he held my mom at gunpoint while they were fighting causing me to vomit out of stress and lose sleep for about a week, and when i was about 11 while he thought i was sleeping he would sneak into my room and grope me in the middle of the night. this continued without anyone knowing for about 4 and a half years. then i found out my dad had cancer. after that i broke down and told my boyfriend and he was devastated. he encouraged me to tell my mom and gave me his unconditional support. i told my mom and she decided to stay with tim. i got angry and threatened to take it to court and she said she would lie to the court to protect tim. i told my father and he did nothing. i decided to move out and fought with my parents for months until they finally let me move into my current weekday and weekend schedule and into my grandparents house to get away from tim. this whole time i had been taking all pre-ap and ap classes in school and struggling with maintaining my grades. my dad is very strict and scream at me for everything below an A or a piece of clothes on the floor, and whenever i beg for a break to collect myself i get called weak and dissapointing. ive been very stressed and feeling like im holding a lot on my shoulders at the same time because of my past and also the amount of work and stress i have. im sorry this is such a mess but thank you so much for reading. i appreciate it :)