Yes. The Goldilocks of what enough is. It also comes from giving and reciprocating. 

 I agree, seeing the good in the small things. 

 Exactly 

You have to pause sometimes and be grateful for the little things 

 I might be different.  For me happiness is setting goals and achieving them.  

When I don’t have a goal I am lost and life looses meaning.

More and more I notice work goals don’t do it first me. It has to be personal goals. 

 I don't think you're different. I also don't think there's a formula. Knowing what does is just as important.  

 I guess success makes you happy

To me, contentment is more important than success

To each his own