Help with Adult Acne?

A little background: I'm a 23 year old female, had mild/occasional breakouts as a teenager, but nothing like I got this summer. We had kind of a humid summer and I did quite a bit of outdoor running/walking. My face all around my chin and jawline started to break out, BAD! I thought maybe it was the weather, but even now that the season is changing, my skin isn't! I feel like I've tried most everything: acne.org regimen consisting of benzoyl peroxide, honey, organic routines. My dad does have skin problems/sensitive skin and rosacea (I think) I'd rather treat it without a doctor, but it's been five months. I'm reading that a plain yogurt mask might help? The honey didn't do anything for my current breakouts....so, I don't know about the yogurt. ANY suggestions or advice would be GREAT!! THANKS!