Everyone makes mistakes.
I tend to get down when I mess up, especially at work. I’ll begin to think that I must be incredibly stupid at times. Whenever these thoughts cross my mind I try my best to shut them down immediately and replace them with something more optimistic.
No matter how badly I mess up I must remind myself that the workday will eventually end. I’ll get a fresh start tomorrow. The key thing is that I learn from my mistakes and improve in that area.
I may even mess up the next day, but at least it won’t be as bad as before.