Lets talk about hate? :(?

I have wanting to feel confident my whole life. On Monday, I went to the bus and since I was doing positive thinking, I was feeling comfortable and confidant. So people naturally took notice and they started giving me nasty looks and everyone was looking at me. This girl was sitting beside me and she had turned fully in my direction looking at me with a pained expression. The environment was turning very hostile very soon and even dangerous. Its like they were disappointed and sad that I had a different air and attitude about me. This women looked at me and she started singing to her baby and kept doing it when she noticed it was bothering me. When we all got out of the bus, I could feel everyone's stares on me. Its like every time I feel good, I shouldn't'. Its like an unwritten rule in our society that says that "You shouldn't feel happy and confident, because others might not be feeling the same way." It makes me sad, depressed and angry. It isn't just enough to talk positively to oneself, when others are ready to hound on you, the minute they notice you become confidant. I don't know what solutions are available to me. I need help.