Can't decide. What next?

Fay • I`m a Scorpio. <3 I love knowledge, sex and everything that comes in between.
I've had the pill and hated it. The patch gave me a weird rash. And I'm not sure what to try next. I've never really been into condoms, but sure if need be, I'll use those. 
​Originally I went on BC to regulate my flow. (I'm EXTREMELY irregular. Like nine days straight twice a month irriegular. Also am a tiny gal. 100lbs). But now I need it for...birth control lol.
​What works for you guys? And what advice as far as other options do you think might work best for me? I'm definitely looking NOT to get a heavy flow again so the fear of making the wrong choice scares me.