Have a back up plan

Try not to just pay lip service to it. I talked a fair amount about the different options I had if I didn't get an internship, but despite that I really did not have a back up plan. I knew that I had options, but I had no idea what direction I would go, after not matching. Even if it's as simple as deciding to apply again in half a year after not matching, knowing a specific direction to go if you don't match may help you better use your time before applying again.