Help please...

Ok, so im struggling real bad. lets start back at HOCO. I went with my bf to it at his school and it was fun and everything. Then the Monday after that I got grounded for not taking some medicine I was supposed to. I cant hear out my left ear and was not taking it because I'd forget. So my phone was taken. One of my close friends is someone who collects phones. So he let me borrow one I had it for a few months and during that time I broke up with my bf after 11 months. He was my first bf but we were going to different schools and it was hard. Then there was this guy who I liked and he liked me so we started dating and we talked through the fake phone that I was borrowing. I kept it hidden at home so my parents would not know. But then he started to try and do things i was not ok with. But i was blind and let him do things to me I wish i didn't. I regret things so much now and I hate that I did nothing and let him do these things to me. My parents found the phone and read all the ekcbt on there. i was in big trouble. i felt so bad and stayed away from him. btw im 15 he was 16. im a freshman in highschool when all this is happening. but i told myself im done with guys i hate them so much. im not doing well meantly. over winter break when my parents found the phone i also did a few things to myself that i regret. when i got back to school i acted ok but i wasent i didnt want to be there at all anymore. one of my freinds introdused me to a friend of hers. hes 18 and a seinor at my school. we were chill and both huge harry potter fans. we started talking more and for some reson i told him everything. about what i did and how much i was strugling. he helped me not do it again and every now and then i still do but i tell him and he helps me. we started dating and i love him so much but with the age it sounds really bad. now im starting to fall into the dark again doing the bad things more often and i hate that i do but idk how to make myself stop. im strogling so much and i dont know what to do anymore. ive been grounded since HOCO basicly. im scared of myself and that one day i might not do these small bad things but bigger that make things worse. if anyone has any advise im here to listen just please someone... also sorry with all the spelling everyone im doing this fast.