If we look at all the great people, they them selves are "self motivators". They motivate them self to achieve the impossible. Motivation is also used by highly social people, to build friendships and connections. Motivation is also used for self control. The reason people commit suicide is due to lack of motivation and self control.
So my advice to you guys is never give up, cause if Thomas Edison gave up on his idea of light bulb, which he tried 1000 of times and failed. But his goal was clear and he was full of motivation. I am posting a very motivational video which you guys can watch have get some inspiration. This is not my video, it was held in one of the TED's conference.
Enjoy!