If you distressed by anything external, the pain is not due to the thing itself; but to your estimate of it. You have the power to revoke it at any moment. You are in complete control over your life and the mindset you have.
You can reset your mind at anytime. What you did yesterday, last week, last month or last year does not define you. Each second of the day is a new chance to be a better version of yourself, so whatever wrong you felt or mistakes you've made in the past do not define what you do in your future. Now is the perfect time to change your perspective, to try harder, and create what you deserve.
Stop thinking of your past as something that has been taken away from you and look at it as a lesson. Strong people are strong because they have experienced different realities, be grateful that you had the opportunity to learn and expand your mind and take the lessons you have learned and apply them to your life to have a better future.
NIMM DIE WELT.