FMaths AND Physics is probably not needed unless you want to do Engineering. I suggest that you drop one or the other personally because it will allow you to concentrate a lot better on the other subjects which in turn should result in higher grades and marks.
I got double A in sciences, but could have had A stars with could ISA exams ( i think i got a C in them) lol. But maths i reeally enjoy and , its my best subject ( got an A star). Got full marks in my chemistry modules, and i may do chemical engineering/ maybe go into medicine. Choosing all of these subjects may keep my options open, and gives me time to think about what subjects i would like to study at university.
I did those choices to A2, drop biology as it's not really useful for much and it's not interesting and will take you a lot of time to memorise all the mark schemes necessary for an A. If I had my time again I'd take PE or something interesting
I started the year doing those options, ended up dropping the Chemistry in January. I have no regrets about doing the 5 at the start though because I started the year doing Chemistry and Biology because I wanted to do medicine, then had a change of heart.
I am taking maths further maths bio chem and economics
A lot of people have advised against but I want to try it out first because there is no harm in trying... and if its too much i'll drop chemsitry/biology/further maths depending on which i dont like most.