breakup advice?

Lv
i know this is going to sound so stupid but im 15 and i just experienced a break up with my almost 4 month boyfriend. we broke up last sunday because he felt he suddenly wasnt ready for a girlfriend and he wanted to follow his faith of god. he took my virginity and honestly is my first love and i cant get over him. i lost a lot of friends recently so i have no one to talk to, my dad left my life when me and him started dating so i kind of turned to him. my mom has work everyday so i sit home alone and just cry. its almost been a week since our break up and he seems fine but our 4 month is monday. i dont know how to get over him but i need to so badly because its seriously destroying me. ive went into my depression again and ive already self harmed and i think about suicide every night. i just dont know who to talk to or what to do and i need help. I love him so much and i just miss him with everything in me.