What's with everyone getting offended
Can you explain what you mean?
I don't like people who takes jokes too seriously
I know it can be difficult dealing with people that are not receptive to your jokes. But you should understand that some people can find certain jokes, depending on the context, a bit offensive.
I don't care. I only care about myself.
That's not really the way to go about doing things. If you continue down that path of not caring about others feelings, you may end up lonely. I think it will be worth to take people's feelings into consideration to prevent that.