You are the determining factor in your future. Don't let others be your judge and jury with their pity and negative thoughts or feeling. Know that you are here for a reason. Recognize, develop, and use the resources you do have. Others see the surface; you know your heart.
The young athlete who aspires to greatness, generally speaking, learns a number of things from several different coaches. The first one taught him the fundamentals; the second one instilled discipline in him and taught him more of the techniques that must be mastered to excel.