Think about the people and things in your professional life for which you are thankful.
Visualize yourself succeeding in your chosen profession and doing the things you know you must do to get there.
Instead of focusing on your mistakes, look at them as lessons you can use to get better and grow.
Take care of your body and mind by having enough sleep, exercise, and time to just relax.
Set goals that you can reach and that are in line with your values and professional goals.