First of all, welcome to CC-UCF!
You asked them directly, and they told you to wait. That’s a little cold, and not the answer you wanted, but it is what it is.
Have others been admitted off the waitlist? Oh yeah! I think you can even go back and look at the waitlist threads from last year and see that a lot of students got in from the waitlist.
At some point, they will give you one of four answers:
Accepted for Fall 2021
Accepted for Summer 2021
Accepted for Spring 2022
Fall 2021 is obviously what you are looking for.
Summer 2021 is really a good deal, and you need to know what that actually means. It means you just have to take one class ONLINE during Summer B, and you are admitted for Fall and beyond.
Spring 2022 is not your first choice, but honestly in five years nobody will know the difference. It just means a little delay, and then you’re fully admitted just like every other student.
If you post your stats (GPA, test scores, etc) we might be able to give you a guess on your chances.