Welcome to the forum @kaio_hugo !
If you would, please do make your next post your Introduction here, which we need per the forum rules.
For a more gentle approach to developing confidence you can work on it as a manifestation of fear, and fear comes from hurt, ad you can heal from hurt. So healing entities like Raphael, Marbas, Ebuhuel, Guan Yin, etc. can help in a less in your face way.