Don't be too hard on yourself, there are plenty of people willing to do that for you. Love yourself and be proud of everything that you do. Mistakes are opportunities for growth and part of the journey.
“The best years of your life are the ones in which you decide your problems are your own. You do not blame them on your mother, the ecology, or the president. You realize that you control your own destiny.”
"No, our wills are not completely free, nor are we completely governed by our heredity and environment. We seem to be born and reared with some degree of choice, agency, or self-control but have to work at accepting its limitations and push ourselves to use it adequately."