sexually harassed and trauma

So I came to tell about my life so,I have a family my mom my dad and one elder sister ...when I'm child I have very close relationship with my father I loved him so much than my mom sometimes I just bunk the class just to spend time with my father so i felt lucky to get a good father like him but the things turned out my father use to harass my mom I didn't believed until I saw with my eyes he use to pour water on food while my mom is eating he done many awful things to my mom so that made my heart broken because and I later I got to know my mom had forcible marriage with my father she never loved him so I was traumatized my dad was nice with me but with my mom he just keeps torchering...so later after some months my mom had a boyfriend I mean first boyfriend she talks with him daily he use to visit without my dad's presence but I didn't know these things I was child to understand these all and she even had sex with him and did abortion so one day my mom got caught when my mom is talking to him so they both argued at last they got separated so dad and mom lives separately.me and my sister stay with my mom when I was 10 grade idk what happened between my mom and her first boyfriend maybe they broke so she bought another guy to home he was nice when I met him first time he use to bring things and all but I didn't know that my mom had relationship with him until I saw with my own eyes while they having sex like seriously that made me sad but still I thought my mom deserve best because of my father toxicity but here also things changed upside down that guy I mean my mom's second bf he's just weird and fucking annoying he just drinks alcohol and argue with my mom he just keeps shouting it made me disturbing he's like psychopath I was totally disturbed and depressed I turned out 22 so I met a guy he was nice to me and got in relationship I mean we had long distance relationship so we talk everyday so that guy knew that I had boyfriend so he started take advantage and blackmailed me that he will tell to my mom about my relationship he started touching me and literally forced on me so basically he wants me to sleep with him I really I can't digest and I was in shock when started to touch my Private parts when my mom isn't at home when he's touching me I pushed him and ran and locked the door when my mom back to home I told her but she didn't believed me and he lied to my mom that a guy visited at home to meet me and she believed him that made my heart broke and I told my mom to not don't allow him to stay at home and he doesn't have a job so he uses my mom's money and drink alcohol I'm still depressed he's still stays at home and I can't stay here I'm so uncomfortable and that incident still keeps in mind I just keep thinking about my death I had these suicidal thoughts idk what to do I hope things will change I just can't keep fighting I just gave up 😊