Paradigm shift

All my friends tell me to have positive attitude. they tell me it will me give the strength to fight the vagaries this world will throw at me. in short they admit that there is arift and constraint between ” I’ and my environment , I and my relationships. i try to overcome this fear and try to be positive , but this fear of rift throws me again into depression. can i remain positive in the circumstances. i ask my friends and relatives for help, but i find them too busy in their own mundane activities that they donot have time for my rubbish talks, and i feel lonely under the circumstances