Hi friends. I applied last cycle and am currently waitlisted at three IS schools... and despite everything, I still have no understanding of if I have even a remote chance of being accepted

I recently completed an SMP and was really hoping to get an acceptance offer there due to my involvement and GPA. Since that didn't pan out, I had a quick question that's definitely best somewhere else, but it's the long weekend and maybe you all could use a poor soul to help here. I also spent half an hour reading through this thread and feel connected to you guys on a personal level lol.
I applied last year. I finished the SMP this year (3.47 undergrad, 4.0 grad, 509 MCAT). I know people warn against reapplying too soon, but I've spent the past year taking first-year medical school curriculum and excelling. I feel as though I am prepared to matriculate (this year, pls, but next year too). Can I reapply with the completed degree, a few new leadership/extracurricular activities under my belt, updated LORs... and be "judged differently", in a positive way, by medical schools? When do I give up on the WLs and press the button to reapply (I'd prepare while I wait, nonetheless)?
(sorry for the long post, long sentences, rambling, etc... future thank you's to anyone who can offer advice <3)