Advice For Getting Rid of Genetic Acne?

I need some advice regarding my biggest problem right now. Ever since I was a teenager, I've had terrible acne on my chest, back, and shoulders. I'm 22 now (almost 23) and it's still a huge problem. I've been trying to treat it but I don't know if it's getting any better. I cut back on drinking sodas, drinking a Mountain Dew once a week, if less. I drink 5-6 bottles of water a day. I also shower every night with Dove sensitive skin soap, benzoyl peroxide, and occasionally use Neutrogena grapefruit acne wash (but not much because the fragrance causes rashes). I also take an Epsom Salt bath ever weekend, along with cleaning my blankets/pillow cases/sheets on a regular basis (Every week for my sheets and every 2-3 days for my blanket/pillow cases). I'm trying everything I possibly can but it just doesn't seem to be working. It's because of some family genes that I might be stuck with it until I'm way older.