repressing emotions and confidence

I realised that a major part of why im anxious and unconfident is because I repressed my emotions, especially anger. I think i repress my emotions because if i dont repress it i talk in a slightly angry way, which gives off anger issue vibes to other people which in turn makes them stay away from me and i become a loner. I dont know how to stop repressing emotions without being angry… i have depression and my dad had anger issues, im just scared that this is what the rest of my lifes going to be like, if i repress my emotions other people dont reject me but they also dont respect me, also i feel like im going to explode, like i cant even talk properly if i repress my anger. anyone went through or is going through something similar?