Never doubt your own worth! Always know that confidence is a state of mind. If you can just appear confident then others will perceive you that way and before you know it, you will feel that confidence within you. Try it!
Right now you may feel that you lack what it takes to succeed. Try to think outside of your insecurities and ignore those voices from the past that put you down and make you doubt your worth.
Positive affirmations are needed here. Tell yourself there is nothing you cannot do, be, or have, if you just believe it's possible!
Life can sometimes leave us feeling that we are doomed to fail. The biggest problem with a run of bad luck is not the unlucky events, but the negative energy that it all leaves behind.
Starting from now, look for the absolute best in every situation, however small and insignificant it may seem.