I thought technically you don’t need a degree just A Level Maths B grade or above. Though most companies prefer graduates with 2:1 or above.
The quickest way to be an actuary is do BSc in Actuarial Science get exemptions from CT1-8.
Then go somewhere like City University and do postgrad and get maybe 2-3 more exemptions from CA1, STs.
If you just do BSc and don’t do postgrad most students struggle with their first exam CA1. Students with little or no exemptions still find CA1 tricky but is a bit more doable because they have passed the CTs and the confidence from that.
This is the fastest way to be an actuary.
I would think long and hard though if you really want to be an actuary as I know many people that are bored and want to leave but don’t know what else to do. The money isn’t everything and is higher in some other professions.