how to be mentally strong;

1- don't fear alone time.

2- don't dwell on the past.

3- don't feel the world owes you.

4- don't expect immediate results.

5- don't worry about pleasing everyone.

6- don't waste time feeling sorry for yourself.

7- don't waste energy on things you can't control.

8- don't let others influence your emotions.

9- don't resent on other people's success.

10- don't shy away from responsibilities.

11- don't give up after the first failure.

12- don't fear taking calculated risks.