Hi everyone! So I'm in year 12 and planning to do the UMAT this year, how many times a week should I be studying for the UMAT and is anyone else doing the UMAT this year?? Let me know in the comments below!

Unfortunately, there is really no magic number that will let you smash the UMAT. And this is made even more difficult by the nature of the test- it is quite hard to really study for it. Regardless, preparation is definitely recommended, and will pay off if you do it in the right way. I would recommend 30 minutes a day, but I know I wasn't that dedicated, and what's really important is how you study for it, and your understanding of the techniques to find the right answers. If lots of people are really keen I can try write a guide on tackling the UMAT (I'm definitely not the most qualified person but I got into my course so if it helps I can find the time i think).
Hopeful UMAT taker here
I don't know how to study for it but I'm leaning towards doing questions just based on the UMAT. This leads me to another problem, where do I get them (want to do more than the 3 or so which are given after registering) for a reasonable price?? Sorry OP for barging into your thread but I would like some insight as well 
There are a few places you can get UMAT material- most are up for purchase on the inter webs after doing a quick google of UMAT resources. I know there are also quite well known companies that release tests and tips, such as NIE, MedEntry, AN's section zero (not sure if this is still running after forum design reboot).
But like you said the former two companies charge an arm and a leg, your pet dog, your mother's eyebrows, and your childhood gameboy- so if they're out of the picture, I'd try section 0, or buy some resources second hand!
hope it helps!