I hate Acne

I really don’t understand why every time I have my period I always experience having acne. Even though its not that bad but I still don’t want to have it. I think I really need to change my diet, this could be one of the reason why I’m having acne. Like right now, hubby and I were going to my in-laws for some bbq but I don’t feel like going. I am not motivated to go because of the marks on my face, It really looks ugly.