Aston uni accounting helpp!!!

Hi guys I hope you're well
I want to do an Accounting and Finance degree at Aston University, Birmingham.

The entry requirements are:
A grade 5 in GCSE maths
BBB for A-level (any a-levels)

I have a good personal statement (with 6 weeks of accounting-related work experience), a grade 5 in maths, and ABB for predicted (business, history, and sociology). do you think i have a good chance of getting in?

I'm scared because my math grade for gcse is exactly 5 and people with a better grade might apply
Also are my predicted grades good, or is it possible that I can lose my place to someone else?

(btw i can improve my predicted grades but that would take a few weeks and i want to apply asap so i can focus on my a levels)