What are tactics to overcome a setback?
1. Accept that it occurred. Reality can be disappointing, someone once said.
2. Learn what you can from the setback
What part did you play in it? How could you have handled it better? What can you learn from it?
3. Put it behind you
4. Focus on what comes next
If you don’t know what that is, then that is the next thing (figure out what it is). If you have an idea, then come up with a plan.