u/Zestyclose-House-249

HEY I’m in grade right now and I write my IGCSEs next year in October/ November do you think it’s wise to start preparing now
My subjects :
English (0500)
Biology (0610 )
Physics (0625)
Chem(0620)
Maths(0580)
Geo (0460)
History (0470)
computer science (0478)

What studying techniques did you use??
Especially in physics ,maths and computer science
What subjects should I focus on if I want to do medicine