When somebody is having a negative thought that he cannot perform certain things, or people do not like him, or he is good for nothing, he should start thinking positive. It is easier to say than to do. Negative things, negative environment, and negative people lead to negative thoughts so one should try to be away from such environment and such people.
Depression is also caused by negative thinking which destroys the life and may result into suicide
But if you think to change yourself then you should try the following ways which are as given below –