I'm so sick of being hurt that I feel like one day I might not care enough about anything anymore
I feel like you're in a sad situation. What makes you say that?
I've had my feelings hurt too many times
I can understand you feeling like you've just had to deal with too much pain to care anymore but you should probably seek some help. Holding onto that much hurt can't be good for you which is obvious based on what you said and will likely lead you to just ostracize yourself from your friends and family.
I just don't want to hurt anyone now that I've been hurt so much.
I think you're right to care about hurting others. It really shows how great of a person you are that after being hurt so much, you can still care about not hurting others.