UKCAT Help!

So I'm doing my ukcat in COUPLE OF DAYS and I'm getting worse by the minute -none of my calculations are going right and my verbal reasoning is horrifying... I started revising from the 1250 book from the beginning of the holidays and started using the online sources (don't have medify tho) for at least 2 weeks now. I don't get it rather than getting better I'm failing. I'm getting really worried -worked so hard for my As and I'll so disappointed if I don't get 600 average from my ukcat.

What do I do? any tricks you guys have to get better in maths bit, please tell me
ps: last mock I did I got a average of 507, like wut?