Prayer: Be Still - Wait on God. Psalm Be still, and know that I am God; I will be exalted among the nations, I will be exalted in the earth. His grace is always sufficient to help you to do or to go through!
Motivation wall — Put post-its on a wall in your room and share motivation with your roommate or write fun stuff for guests to read when they visit. Have a stack of post-its handy for people to write their own.
This is a cute saying but very true. One can't dwell on the past, everyone is human and can make mistakes. It takes a special and strong heart to accept that, and to Forgive and let go. But do it for your own sake too because it feels good to be happy!