Hi there. Congrats on starting your journey to ACCA qualification! The number of exams that you decide to sit per session will be dependent on your personal circumstances, and how much time you have to dedicate to study. I'd really recommend reading through the 'Preparing for exams' hub on the ACCA website. It includes some useful videos and planning tools that will help you prepare an exam strategy.
Best of luck! Isobel, ACCA Community Manager