if u dont have a tutor how would you improev by urself
it's mainly if your english skills are mid/average, try to do it independently and cross that gap from the B to the A range, i did that in y11. like get assistance from your teachers when you can but i tried to do it based off what i got in the assessment marks, and just studied my feedback. for me, my feedback was mainly convoluted ideas and me not linking back to the qn, so i just improved on that for the next assessment and got a higher mark. so by the time i got a tutor in y12, my eng skills were strong enough so that my tutor didn't need to critique me on having poor structure (which is what you should already have by y12) but rather more important things
and i might have worded some of it wrongly, it's not just necessarily improvement you're looking for, but also the ability to self-critique your work and evaluate your own weaknesses which is a good thing to do before you hand in a task to a tutor or a teacher for feedback (because your tutor/teacher often has tons of students to watch out for, they're not going to know or remember every single thing about your previous assignments, but you will). often i've found in y11 from my friends all they did was just hand in their assessment tasks to their tutor, and while they did get extensive feedback, it was mainly wasted because a lot of the time they didn't have the skills to improve/get better - like they had the feedback but it was up to them to do the improvements themselves, which they didn't know how to do. i knew someone who got a low B for an assignment even after asking their tutor for help so many times in the leadup to when it got handed in
but if your english skills are actually so so so bad then you probably should consider a tutor who is catered not towards your assignments but more towards just improving your english skills in general to prep for y12. other than that tutors in y11 are not really needed