I'm a super extremely unconfident person and I always focus about what others think of me because I'm afraid of getting judged. How do I improve my confidence and stop caring about what others think so I can be myself?

我是一个极度缺乏自信的人,我总是关注别人对我的看法,因为我害怕被评判。我如何提高自信,不再关心别人的想法,这样我才能做我自己?