Your mind is the source of your thought, your thought influences your beliefs while your belief controls your reality.
If you think you can, you can, and if you think you can’t you are equally right.

Where you are today is not a result of the ordeals you’ve been through in life, with all due respect for your personal pain and struggle. You are where you are today because of your thoughts.

It is possible for someone else to have had similar negative experiences but chose to react differently, thereby ending up a victor instead of a victim. If you find anything in your life that you don’t like, or you are not proud of, which you would love to change, your change is not too far. Just change your mental attitude toward those things and make proactive decisions instead of mere reactive responses.
Your change is only one good thought away.