CA Final Classes

Hello Frnds,

My attempt is due in May 18 and I have to complete my classes of both the groups. I am a bit confused about the Classes of both the groups , means should I start with the classes of first group and finish them off first or should I go for the subjects of both second and first group at the same time.
please also suggest regarding self study material as well as some guidance to overcome a theoretical subjects such as law and audit.