Never measure yourself by the standards of another. Everyone is fighting their own unique battle with their own specialized weapons. You might not excel at math, but be a fantastic writer or a poor musician but a great dancer. Work on your weaknesses, and build your strengths, and only compare yourself to the self you used to be.
You may have untapped spiritual strengths that are not obvious to the outside world. Ask your Angels to show you these and ask how you can develop them further.
You will soon fall in love with yourself and your amazing gifts. Why not? They are the gifts you chose when you came to Earth! Enjoy them!