if you're only in y9 rn and you're planning on moving schools don't give up now, most people i know including myself got less than 50% in all the y9 tests, y10-11 is when it gets real esp since everyone around you normally starts taking it more seriously too. also, gcse barely count towards uni applications, most unis just want like a 7 in maths and english lang and sciences so you've defo got time to get there. trust me y9 is not reflective of your end of y11 grades AT ALL. as long as you put the effort in at home, use free science lessons yt channel vids, you can basically teach yourself the whole course at home regardless of how good your teachers are. even people half way through y11 with bad teachers gettign 4/5s jump to 7-9s by the end of the year if they revise right