help!

Hey everyone, I’m trying to figure out whether 3 As are realistically possible with my AS marks: 90 raw in Maths, 88 in Physics, and 78 in Chemistry.
Could I potentially get an A* in any of these as well, or are 3 As the more realistic outcome?
Which A2 paper would be the easiest to prepare for if I’m aiming to maximise my grades?
For Maths, is 60+ / 75 in P3 realistically achievable?
For Physics, is 75+ or even 80+ in P4 possible, and is 30/30 in P5 achievable?
Also, based on these AS marks, how realistic is an A/A* in Maths, Physics, and Chemistry?
Would really appreciate advice from anyone who has had similar marks or experience with these papers.