going to uni at 24

i’ve taken the last 6 years out of education following COVID and working out what i want to do. i’ve worked in a variety of roles but i feel i’m missing the drive, challenge and motivation from full time education.

i achieved good a-levels in 2020 and i can place myself on a high achieving engineering course at a russell group - however i’m scared that i’ve forgotten key components in a-level maths. the course entry requirement is AAA with Maths.

does it come back quickly? should i take steps to maybe revisit a-level maths? am i underestimating my ability? any advice as a mature student would be much appreciated!