My life is goingdownhill what do i do?

so i was a good girl i never even thought about having a bf because of my religion never went near drinks or smoke and got good grades. there was this one guy who i really liked but had a gf i started talking to guys and started to like them but they all lead me on so that caused me to be a little depressed. then i met this other guy who we talked for about a year i started to like him alot and we became gf and bf but then he kiwsedme which was a really big deal for me because i never kissed even though i am 18 but i wanted my husband to bemy firstkiss and he started touch my private and sadly ijoined then after thati found out he had a gf so i went through depression i got a D in all my collage classes got introuble at work and cried my self to sleep everynight he didnt even care...so a few months later the guy who i really liked who hada girlfriend became single so he asked if we can hang out and he asked me if i ever liked him i lied and said no why did u like me he said maybe but then he said he is happy being singlei told him dont worry youll find the right girl then he texted maybe its you jk and he kept complimenting me and said he liked being around me then afterthe night we hungout he textedbe hope u learned your driving we texted a little but it was dull and he didnteven txt me the next day so i textedhim but it was dull again..i am tired ofbeing led on that really triggered everything so i dont know what to do and my friends want me to smoke weed with them and i am planning on smokingit wouldit make me feel better