Do you ever feel the world wants to put you down?

I try so hard to put positivity out into the world. I really believed if you projected out good that it would come back to you. Lately it feels like people see that and want to crush it. If I want to be happy and see good in the world and the people in it then why do so many seem to want to take that away from me? Why is it so important to them that I become as jaded and pessimistic as they are? And the rare time they don’t it’s because they want to take advantage of me. I’m starting to think I was the idiot the whole time and this world is as garbage as everyone is telling me. I’m sorry for the rant. And don’t take this wrong I’m not going suicidal or self harm or anything. I guess I’m just disappointed is all.