In case you didn’t repost your question, I can offer just a little bit of advice:
If you don’t get in the first time and you reapply then you need to have done something to step up your application – no slacking whatsoever.
Also, if you are waitlisted and really want to go, have you tried writing them a letter expressing how strong your interest is? When I interviewed at med schools they said if you were waitlisted and really wanted to go there that a little persistence will help bump you up (not too much though![
]).