You have to believe in yourself if you want to accomplish anything of significance in life. Self doubt is like a cancer that slowly spreads and eventually incapacitates your ability to act. This doesn’t mean you become foolhardy or act with too much hubris but it does mean you have to trust in your own abilities and forge ahead. Many obstacles will be strewn in your path including the words and actions of people close to you. However, don’t get distracted or sidetracked by others who consciously or subconsciously want to hold you back and/or define you in ways you don’t want to be defined.