I don't believe in yearly resolutions, but I will just improve on some things, much like Winkio said. My biggest problem is that, mostly due to my OCD, I can't do certain things in the present because of things that happened in the past, e.g. in a game called GunZ, I once hacked (it was fun though; flying around through the stages and trolling people for a bit) (so not the hacking of accounts, but of the game itself-ish) and faked to be a GM (this too was just trolling, so no real harm was done). Because of that, I disallow myself to play GunZ or any shooter for that matter. I even don't uses guns in Terraria. I will try to solve this issue ASAP.
Anyway, I wish you all good luck!