Major life progress from November:

1) I feel like I've brought my social media addiction under control. I might still spend the whole day on Facebook, but now it's mostly because I choose to: I haven't lost a day to the site against my will for a while anymore.

I achieved this by following the advice in The Power of Habit and changed my routine while keeping the reward same. Namely, whenever I get an urge to go on FB when I shouldn't, I check my notifications via the slow GPRS/Edge connection in my phone. The slowness combined with the tedium of typing on a phone keyboard makes the experience much less rewarding, and easier to pull out of. (I just hope that I won't be forced to upgrade to a real smartphone at some point.)

2) Shifted my diet in a much more vegan direction by finally eliminating the cheese pizzas from it and generally making an effort to stop buying foodstuffs containing animal products. I thought this would be considerably harder, but it turns out that the shift from a meat-eater to mostly vegetarian was MUCH more difficult than the shift from mostly vegetarian to mostly vegan, at least for me.