IS THIS ENOUGH???

So this is my 1st time to do Alevels (unit 1) and also my first time to do Edexcel as I did cambridge last yr, the MS are REALLY scaring me cuz theyre so shit, and Im literally PANICKINGGG each time I solve a paper.
anyway, so I solved like all bio papers 2019-2024 and like 70% of all chem papers, and I did memorise the MS for most questions in both subjects + memorised and understood all savemyexams notes several times.

Is all of this enough?? what else can I do?? and if I score 65/80 in chem, and 65/80 in bio (approximately) is that good to score a 120 Full UMS?

PLSS HELP and tysm, I always have nightmares of me getting shocked by the paper with completely new weird questions and failing lol :((