How can I stop hating everyone?

I don’t like people. I’d say about 90% of the people I meet, I dislike. Hell, I probably don’t like you. This is not because I think I’m better than everyone, necessarily, but I simply cannot relate to most individuals. I only have genuine respect for few. As a result, I’m often angry, bitter, and cynical. Though this is a fundamental part of my personality, I recognize that it’s not the best approach to life. I think it’s instinctual and pretty hard to change, but I’d appreciate any suggestions for how to tone down bitterness and give people a chance without immediately judging them.