First, think positive thoughts! Don't count yourself out just yet, you're still waitlisted and have an interview to prepare for anything can happen!
I met one student that shared their story about not getting into anywhere the first time around. During that gap year she worked for an ENT to gain more experience and save money. She said it was actually a huge blessing because she saved enough to be comfortable and didn't have to take out as much in loans.
Also ditto what @SEM596 said!