Don't do anything you are paying a more qualified person to do.

superlative form of good for you: most good for you

comparative form of good for you: more good for you

(colloquial) Consider the consequences of your actions before you end up in trouble.

(rhetorical question) What is the delay? Why are you not acting or proceeding?

Persistence is important in the pursuit of success.

Synonym of when you mess with the bull, you get the horns

One should not carry out an action if they are unwilling to handle the consequences.

Requiring little effort or sacrifice on your part, with the implication that it is or has been more difficult for others.

After being tricked once, one should learn from one's mistakes and avoid being tricked in the same way again.