Should we feel good about life? It was intense suffering which bought me to the path of Dhamma. But now as I practise I see that I have started defining my life through the lens of suffering. Even if I practise non-attachment and remind myself of ancicca which destroys craving and clinging I feel bad about my life. 


Should we feel good about our lives? 
What are the reasons to feel good about it?
Can we be both happy about our life and pursue Nibbana?
If we only look at life as suffering and unsatisfactory does this not make us masochist?
Some reasons to be happy comes from Dhammapada 197-200:


  How very happily we live,
  free from hostility
  among those who are hostile.
  Among hostile people,
  free from hostility we dwell.
  
  How very happily we live,
  free from misery
  among those who are miserable.
  Among miserable people,
  free from misery we dwell.
  
  How very happily we live,
  free from busyness (materialism, avarice)
  among those who are busy.
  Among busy (materialistic, avaricious) people,
  free from busyness (materialism, avarice) we dwell.     
  
  How very happily we live,
  we who have nothing.
  We will feed on rapture
  like the Radiant gods.


Rapture (piti) comes from jhana (level achieved in concentration meditation)

The above words come from the perspective of monks who have renounced the worldly life.

But even for lay people, it just goes to show that we can be very happy and grateful for all the good things or situation that we have, the good environment that we're in, and the good deeds that we have done.