1, don't underestimate your viability, let alone overestimate your vitality.

2, no one owes you, don't cherish, don't overestimate yourself.

Don't overestimate yourself if others don't underestimate you. ...

4, don't overestimate your education, come out and mix, relying on strength.

Don't overestimate your position in others' minds, or you will be worthless.