i have lice and idk what to do. :/

soo i’ve had lice for a year lol. i’ve tried to get rid of it three times already. every time i treat it, my mom gets more and more mad at me. i’m pretty sure i gave it to my bf and if he has it, his parents probably have it too. i hate myself so much for that. idk what to do. should i keep hiding it and pray it goes away? secretly treat it? tell my mom? if i do get it treated, should i tell my bf? this whole ordeal has fricked up my mental health sooo much. and i give up. :( i think i might tell my mom one of my friends told me she got lice and she should check my hair. idk. PLEASE HELP. this while HELP MY MENTAL STATE DRASTICALLY.