every moment is enjoyable. it depends on us, to understand the amusement or give up!
I believe everyone has a margin of control or let's say impact on her/his own fate. and that margin should be filled by the energy you pump in to your life.

There is no justice!

If there was, no one would suffer from hunger or diseases at birth time etc... life won't give people same opportunity, but gives us a portion of ability to change whatever we have born in to.