I passed the Level 1 exam in February of this year on the first try, and I am now really worried that I have already forgotten the formulas. I want to take Level 2 in May, and I am not sure if this is normal. Has anyone else had this experience? It's only August, and I don't remember anything except put-call parity and some liquidity ratios. Does anyone have advice?

I just started studying for Level 2, and the formulas are different. I'm concerned I won't remember them for Level 3. Are there any proven ways to retain all this information? Please give me advice that worked for you! I am 31 years old and generally have very good memory, but I am really shaken how much I already forgot from the last exam.