Even though you are reaching your goals,
your standards go higher and higher and
you can't really enjoy your achievements.
When you are happy, you are more productive and
your work is much
more enjoyable.
Notice even small successes and build positive energy around you.

Smubbles is available in Google Play for free! It will not require internet connection after being installed.
Each day try to find one pleasant experience that made you smile. Think about how nice it was and write it down.
Take a look at yout last 30 days. There is a plenty of small successes that make you a happy person.