I can totally relate. I'm very much still learning how to control my emotions even a little bit.
For instance sometime (no pretty often) my girls make me so irritated. And not normal kid irritation, like they do littlest thing I gt SO angry. Or if someone is rude/cuts me off in a store I feel like cussing them out lol (I don't of course) and I was in the bookstore last week and I read a couple emotional book that apparently sent me off and I started crying & had to leave.

I know it's no fun to have your emotions go up, down, sideways...it's exhausting.
I downloaded this meditation app on my iPhone that talks you through breathing exercises with relaxing sounds, and it's helped quite a bit most of the time