Hey there :-) I agree with StationtoStation, whilst you work when you're going to do your BMAT, try and get your UKCAT out of the way before the end of the summer. It's worth booking your test early as spaces at the test centres can fill up pretty quickly and your can always postpone your test if the date approaches and you don't feel ready. We usually recommend about 4-5 weeks of preparation, feel free to check out our website for some free resources :-)
Best of luck,
Alex, 4th year medic
6med