Improvement is invisible. I feel so stuck.

Please pura padh lo. I'll be appearing for jee 2027 as a 12th grader. Last year padhai achhi nahi tha, marks kharab aate the, i would try not to care, thinking mehnat karungi sab track pe aane lagega. This year, i got into a really bad batch, tried to do everything right anyways, par kuch ukhad nahi raha yaar. First test 104/300, second 94/300, and this time 61/300. I didn't think I could get this low. In fact this was the test i studied the hardest for. Sab vahi analyse Karo waala advice denge, par I think I'm just not capable. RR nahi karna mujhe par aur kuch bolne ke liye hai bhi nahi. Just wanted to rant. Any advice is welcome.