Be curious, try new things, and really learn from failures
This has become a cliche, but so many people I know just don't try new things. This is especially true when there's no material payoff at the end such as a certificate.
Grit & commitment
Carry through. If you change your thing every week and run away, you're not going to run very far.
Aim high
If you don't aim high, you won't shoot high.