Guys, how do you stay disciplined as a programmer ? I mean how do you manage to work , work and learn for your side projects and also maintain your health ans social life. Is it possible ?

Chose your priorities wisely.

Currently, I don't bother much with side projects and continue to learn on the job. So coding happens almost exclusively at work for me.

There's this unhealthy notion in the dev community that you should learn on your own time.

Yet I value having a life that includes meeting friends, playing computer games or going for a swim.

If you want be a workaholic that's fine too. Just don't expect the same lifestyle from me.