I don't know why but I no longer have the confidence to open chicks, and I get nervous again when I talk to them, and if I start a convo and they give me a short response I feel like they are not interested and lose motivation to continue talking. Why is this so? I never used to be like this, now I am nervous wreck and can't even approach chicks, not knowing what to say, how to act or behave. I feel very pathetic and lost a lot of respect for myself, I feel like a waste of life. Please help me guys.