5 Tips : How to Increase Your Self-Confidence ?

Number One:
First of all, it's important to ask: if you do not trust yourself, how can someone else trust you?
Number Two
Stop looking at what others do, what others love, where others travel, what others eat, and focus on what you want to do. Because the life you live is yours, not others. Live your own life and let the others live their own.
Number Three
I see the world divided into two parts:
those who believe very much in what they do and those who do not believe at all.
I do not think that there is a middle way (although many lie in mediocrity).
So automatically if you do not believe in yourself 100%, you do not believe at all.
Mediocrity and not believing in you are the same thing from my point of view.
Number Four
Spend more with you and understand yourself a lot more.
That's how you get to know yourself better and have more confidence in yourself. Know what you are good at and what you are not good at. Know what you like and what you do not like.
And letting you be what you really are, do not try to be what you are not, just to get something from the others.
Number Five:
And last but not least: to accept some weak points that you have and you do not like and you can change if you can
Some things you can change, others you can only accept.
I know, I understand how you feel, and it's hard for me to accept things to myself, to accept when I'm wrong, to accept when it does not come out. That's because I do not like to lose, just to win.
Just like the day without night.
Accepting what you can not change will help you a lot.