Slip-ups are a part and parcel of life. For everyone. Moreover, no one avoids them.
Now when a slip-up happens, you have to ask yourself the following questions –
1. Do you realize your slip-up?
2. Was it in your control or not?
3. If yes, what are you going to do it about it next? If not, then why dwell over it?
4. More importantly, does it change anything about your life, your plans etc? How?