Edexcel chem a level help

Hello, I do edexcel a level chem and I got my a levels in 2 months. I always got like low As in year 12 for my exams but in year 13, i put more effort getting high As and A*s. Is there any advice to give to ensure I stay consistent on this A* level and advice on paper 3 since i suck on the experimental wordy qs.
thank you

When you said low As r u talking about the Offcial AS exams in yr 12 for ucas predicted grades?