If you make a mistake, try to quickly find the lesson from it and try to make sure that it never happens again.
Don't dwell too much on it. This can be almost as bad as making the mistake itself. Sure think about what you did. Try to come up with ideas about what you are going to do if you are in that situation again and if you find yourself in that situation recognise what it is and do something differently.
If you are feeling down about making that mistake don't hide yourself away. This will just make you feel even worse.
Get out of bed. Get out of bed with a purpose, with a mission, go and do what you have to do that day. Go to the gym as the young man in the picture below did.
Look! He is sticking his tongue out at his mistake and saying, this is not going to beat me. And it won't. The only way your mistakes are going to beat you are if you let them.
Since you are reading this blog I know that you are not going to keep on making the same mistake like I did. You are going to learn from me so you don't have to.
Finally for people who have been the target of mistakes remember that when you truly care for someone their mistakes never change your feelings because it's your mind that gets mad but your heart still cares.