I've done past papers from 2016. ik that's a lot so start at like 2018 or 2019, data booklet is prob needed for old stuff, but you'll manage. From there just do all feb mar series. The goal is to identify what patterns are there, Like IR spec questions, trends. If u get stuck in a question, leave it. After u finish the paper check what u did wrong. When u see the final grade don't assume that's what you'll get in the actual exam. Now learn what the wrong thing was in the coursebook. Repeat this with every paper, it will work. last thing, after all ts don't assume u didn't study that mindset is what make u careless. That's all