What do I do?!

Okay, so right now I'm on a gap year after just getting A*AA for my A2s (German, Economics and History respectively). My firm was deferred entry at KCL for German sole for AAB.

When I applied, I also applied for Oxford but after submitten written work and MLAT test successes and four poor interviews, I was rejected.

So, the question is: do I reapply to Oxbridge again? Do Oxbridge look down on people they've already rejected? Is it possible, that with my grades I could get an unconditional from Oxford this time round if I perform better in the interviews? Also, if I call KCL, is there a chance I could change my course to something like German with History with my A2 grades?

I'm on a gap year anyway so its not like I'd be missing too much but it'd mean going through the whole stress of the application process again with no guarantees of getting in anyway.

What do you guys think? What would you do?