Trying my best?

I am trying my best in everything in my life.

But is this enough?

Is this enough to make me progress through my life?

If it is not good enough, what else i can do?

When i am tired, I want to relax, but do i have the time?

A fren sent me a text before:

"Never blame any of the days in your life.
Good days give you happiness; bad days give you experience.
Both are essential in your life."

I want to be a happy person rather than a person with lotsa experience.
Or at least, a predominantly happy guy with some experience.