I would suggest you not transfer twice. If you really don’t want to stay at UCLA, withdraw, and take a gap year. Do something very productive during that year, and apply to some schools to transfer to as of fall 2024. Note…I said schools…not just one.
@Gumbymom does UCLA give students leave of absences.
In my opinion, transferring to a community college and then transferring again to try to get into Penn…isn’t a good idea. Unless you can’t afford to attend UCLA any longer.
Take a deep dive into why you want to leave UCLA. As noted above, a school like UPenn will want an academic reason why you wish to transfer there. What will that be?