Sudden Breakouts

Alright ladies I need help! I'm 19 (20 in 11 days!) and a minth ago changed my diet to lose weight after gaining 15 pounds suddenly and have seemed to have broken out on my face... All through middle and high school I've never had bad acne. 1 maybe 2 small breakouts around my period each month but nothing besides that. I've always had a really oily face and never had to wash it daily or anything. After I changed my diet and noticed the breakouts weren't going away I started washing my face everyday and they still aren't gone! I need help! 😱