Self-esteem reflects your overall subjective emotional evaluation of your own worth
Prof. Christopher Mruk's Self-Esteem matrix is created by Competence (horizontal) and Worthiness (vertical):
Competence is how good your abilities are at doing something, whether it be your job, sport, or creating something.
Worthiness is an internal feeling about how good you feel about yourself as a person.
Now evaluate your personal value on both dimensions, and find out which of the four types of self-esteem as displayed in the matrix relate to you:
Low Self Esteem
High Self Esteem
Worthiness-based Self Esteem
Competence-based Self Esteem
If your competence evaluation is low, find ways to train your skills. If you seek to increase your worthiness, there are two easy ways shared by Robert Haringsma in his talk:
Priming: it's an increased sensitivity to certain stimuli due to prior experience. In more practical terms, that means: Stand in front of the mirror and say out loud to yourself: I'm fine the way I am.
Meditation: helps you create a counter-voice to your inner saboteur voices (ego) that create doubt or keep you stagnant. Sit comfortably, close your eyes and count from 1 to 10, 10 to 1, 1 to 10 with every breath you take.