a little over a month til a levels - exam practice strategy?

heyy, im doing aqa a level business, psychology and english literature and ive been doing content and then exam prep questions from the aqa website and ive been doing them every now and then, but at the min i feel like i don't know how to get around to answer some questions like i was doing a paper 2 for business and some questions on there i got quite confused by and i felt like i didn't know the content as well as i had thought. but at the same time, it may just be me and feeling a bit anxious and worrried, of course i'd like to do really well but i feel sometimes i doubt myself on my abilities comparing with others when i shouldn't be. any tips on how to cope with this?
thanks
S