I think that every person can improve his/her life. You just should really want it. I have some ideas how to help you ;)

1. You should search for temporary and concrete causes of misfortunes. Feel the difference: "It always happens to me, I'm real fool and my stockings always tear" and "It happens but not always, the previous three stockings torn because they were old and it's not my fault. By the way, where is the shop here?" The second variant will limit your feebleness and will not allow it to live with you.

2. If you have misfortunes in the sphere of your life do not spread your feelings and thoughts to other spheres. Try to remember about your successes and hopes in other spheres when you fail. Compare: "So, I torn my stockings, my mother was right when she said that I'm clumsy. And I didn't prepare my presentation yesterday. And Nick doesn't call me. I hate myself, I'm the unlucky person".
Stooop! One minute please! Stockings are just stockings. So I have the