Hi so I'm doing math, FM AS, physics and chemistry. So what happened was that initially I wanted to do computer science instead of chemistry however I didn't get get computer science so I chose chemistry as a backup and then hopefully when the year started I could change what happened is that I couldn't change. So I already got a tutor for FM AS so I wanted to do FM a level privately my school said even if I do that I'll have to still do minimum 3 a levels with them then in October I had a surgery so I left for about a month and couldn't follow this issue now I can't change chemistry a level at all not even switch with BTEC business now I don't know what to do since chemistry I remember nothing at all from GCSE like in all seriousness I actually forgot how to balance an equation. Like do u guys have any advice on what do my school said that if I really want to change I'd have to reapply at stay back a year which I don't wanna do.