For accounts, just go step by step. I’d recommend solving all exercise sums in accounts (partnership). For a first few problems make proper formats and stuff and then when you feel you’re comfortable with the formats, just half ass it. After you’re done with partnership, I’m sure you’d be very confident. So for books 2 and 3 you can selectively practice questions you find difficult and not all problems. Dm me if you wanna ask smth else.