High predicted grades worried I wont achieve and applying to uni

I'm looking to apply to university soon and my A level predicted grades are A*A*A* in physics, business and maths due to my high AS results. However I am behind on a2 work and I am finding it challenging so I would expect AAA-ABB. I'm worried that if i apply to university courses suited to my predicted grades that I will get the offers but may not achieve the high grades that will be needed so I wont know which uni's to accept the final 2 offers from as I dont want to be stuck without a uni, but i want to go to a good one. I want to study economics and was wondering whether I might get unconditional offers from any specific universities as this would be perfect for me. Any advice? Thanks

Depends, where are you thinking of applying?

Bath, university of birmingham, leeds, surrey, loughborough, nottingham, warwick, durham, bristol, York, UEA. Quite a long list sorry haha

You won't get offers higher than the course's entry requirements regardless of your predicted grades. Apply to universities that have requirements of the highest and lowest you think you could achieve and use one as your firm and the other as your insurance if you get offers.

Do you think I may not get offers from universities who's entry requirements are ABB-AAB because they might think I wont end up accepting that place because they assume I will accept an offer from a better university??