gym everyday: I found great success with Pilates. It's usually me + 2-3 other people and the instructor. There's chatting during the session after you become regular. You get to have some social life while exercising. It also helps tremendously with posture, specially for someone who spends all his day in a chair.

It's still hard to do sometimes, like in stronger depressive episodes. But it's way easier than gym at least for me.