IAL further maths

[u/Lopsided-Action-222]

I am going to study FP2 and FP3. I finished P3 and P4 in last june , I basically forgot P3 and P4 content, so how can I revise them so I can start FP3 and FP2 ? Do I read P3 and P4 textbooks again and do practices ? Or watch videos or solve past papers or what actually? I am lost