Wasted my 11th

2026 aspirant here, I wasted my 11th and now I only have one year left for mains. Wasted in the sense ki thode bohot chapter kiye hain (just the lectures) and 0 question practice aur chemistry ka kuch bhi nahi aata Would be a great help if you can guide me how not to fuck up my 12th grade and if I can still make it or not