I feel like everybody hates me, so i hate everybody

i think many people get this feeling from time to time but with me i’ve been feeling this way for years now. I try to be a nice person and do not get into conflicts when things could resolve through communication. I support people, listen to them. However, i always feel as if i’m being judged. ALL THE TIME. that’s why i judge people and hate them in my head. cause i wanna do it before they do it. I’m extremely sensitive to any criticism. I recently discovered that i’ve got this immense feeling of shame 24/7. How do i deal with this? it ruins my life. should i just seek therapy?😔