should i have waitlist hope or nah

surprisingly i got waitlisted at Princeton, Columbia, UPenn, and Cornell, though i got rejected from the other ivies. I got into all the UCs and I'm gonna commit to UCLA while i wait for these waitlists. ofc I'm gonna write some LOCIs and whatnot, but post-April, should i even have hope that i get off of any of these waitlists? I'd 100% go to princeton, and maybe columbia and upenn, if given the opportunity. i'm a physics student btw.