Not that long ago I had to deal with anxieties and finding hobby was remedium for that. But it was not perfect, because thoughts about its meaningless become stronger and stronger. Then I found out that there is really important to find some audience which can boost up your productivity and give that little spark of meaning to any thing that we do in our lifes. Reddit, HN, github were my starters (fun fact is, that I started with amigurumi knitting and deep learning side projects, simultanoeusly).