Remaining with the pious

I want to know about how to deal with fake people. Even I can't understand who is fake or real with me. When I know the reality of that person I depress myself and feel very lonely and also want to remove the "muhtaji" of that type of people. Kindly tell me how can I deal with that type of people? Somehow I feel my self very disappointed due to people's behaviour. I believe in Allah and keep calm on myself but don't know how to deal with the situation. I also perform "nawaafil" of tooba and shukrana, but don't feel comfortable. Please guide me how to deal with situation, and want to be a brave man. Kindly help me.