Everyone has this problems with there self esteem but how bad and the level varies.
To develop self esteem, you first need to develop self confidence. How do you do that? You couldn't do that unless you are successful in some field. By being successful in a field you are going to get more self confidence and self esteem.
So first gather information about your interests and about your field of work/study. Brush through them regularly(Don't be lethargic). The more work you do the more confidence you will develop.
Try to bring the topic of your interests into the conversation when you talk among people. People will slowly start listening to you.
This is boost your self esteem.
It's like a circle and the more you do this the more success you will get and the happier you will become.
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