(If you have gloves, wear them if not then don't use your full strength or you'll bloody your knuckles up)

If you have a punching bag or something you can hit, go up to it and see how many times you can punch it within ten seconds. Count every move.

How many times did you punch it?

You're probably wondering why you only got ten seconds and that's because when you're in a real fight, ten seconds is the MOST you get. These situations are so fast, and if you dont know what to do it might not end well. Practice punching the bag, and try to punch fast and hard (unless you don't have gloves then just focus on speed) while timing yourself. If you can, kick the bag as well.

All these things I've written down will hopefully help in a bad situation.