Sometimes in our life, when we face difficulties, sorrows, criticism and what not, we start thinking negative about ourself and at some point of time, that negative grows to such an extent that it becomes a monster and we get trapped in the walls created by our own mind. To escape our mind's prison, we only can help ourselves. To fight negativity, positivity is needed. And someone else's motivation might not have that effect as self motivation might have. So YOU need to help YOURSELF.