Porn/masturbation - I think I will share this one with a lot of younger men. I have been researching the NoFap thing and I think I'm going to try it. I have cut way back in the past few months, but I still always fall back into it.
Caffeine - This mostly comes in the form of coffee, which I am on day 2 of quitting. I wish I could say it's just a harmless way to wake up, but not for me. I never know when to stop and I always end up drinking 3-5 cups through the day. It makes me feel truly awful, there have been times when I felt like I was going to faint as my blood was pumping so hard and I was dehydrated. I have switched to tea. Less fun, and I eventually want to stop with tea as well.
Internet - This is a bad one. Scroll, scroll, scroll. I mostly use it as a learning devise and a way to talk to strangers, but I end up neglecting my own life for it some times. My kid shouldn't just be watching tv while I scroll endlessly on my phone, that's no way to raise a child.
Food - this one I have gotten a lot better about. I mostly eat paleo these days, but I've fallen off in the past few, getting sick makes me want comfort/shitty food.
So there is my list of addictions. Small and mostly harmless compared to the big bad ones out there, but drugs and alcohol just never appealed to me.