In life you go through things that cause you to think negative. People do things to you that make you lose track. You make bad decisions in life that cause you to be in a place you never thought you would be. You open yourself up to everything. The hurt, the love, and the drama life brings.
In every case either way. Watch what you focus on. Focusing on the negativity around you will consume your time and your ambition. It will slow you down. You will constantly think about what happen to you vs what you could do to make it better. What opportunities you can turn negative to positive?