i don't believe that ucl does a law conversion, they do graduate courses such as master of laws and such but not a law conversion. you could always take a gap year and reapply for 2025? but that still doesn't guarantee that you'd get in and law conversion is quite pricey. but ucl isnt the be all and end all. i got rejected from durham for law (dream uni) but i got into other unis and life continues, you will be fine and it will all work out wherever you end up.