I have fallen into this cycle many times, my advice for if you are feeling tired is to give up that sort of content for a few weeks. In the time when you would [watch tv, game, browse reddit] just sit on the patio and watch the clouds go by (maybe with a single beer or glass of wine if you are so inclined) and let your mind wonder. It can be excruciating at first as you overcome your addition to mindless content, but after you get over that you can finally let your thoughts be free and actually relax. As you get into the rythm then you can start to shift to more productive activities like going for a walk or cooking or blogging or whatever, but the first step is to break the addiction to mindless content.