I feel as if I don't belong here?

20 year old male. I am a very kind person, I have no hatred in my heart at all, never mean to people, I love helping people, and I don't lie either. 99% of the people I come into contact with me like me, especially once they've gotten to know me. The people who don't like me have almost always changed their opinion once they've gotten to know me, and those who just don't like me are A holes to everyone, and I couldn't care less if anyone likes me. I do know how to be mean, but I choose not to. I am always myself, regardless of who I am around. Many friends will tell me they love me, like a brother. I always look for the positive in everything, and I keep a positive mindset. I'm a very peaceful person, but I am not afraid to fight for what is right. I envision a world without hatred and suffering. You wouldn't expect it, but I cuss a lot. I do know when to filter my language, such as when I', around children. Overall I'm a good person, I do get mad, but it takes a lot and I would refer to it as angry because when I reach that point, it means I've had enough. When I do get angry, I have no problem yelling or fighting (if attacked 1st), but I'm defending myself or someone else for what's right. I would much rather talk it out than fight or argue. I am not scared of anything or anybody, I literally fear nothing and because of this I believe I have no limits.

After seeing how many other people act and treat others, I'm starting to believe I don't belong here.