I have been flying since 1976, nearly all general aviation. 0.7 hours today (including two water landings

! ).
Don't worry about the radio for a while. It sounds complicated, but the majority of the radio communications follows a predictable pattern. Focus on flying the plane, and watching for other aircraft traffic, let your instructor worry about the radio. Do not dilute your experience of handling the aircraft with thinking about the radio, it'll come in time. When your flying becomes muscle memory, things like radio, navigation, diversons and emergencies will begin to fit into your mental capacity too. If you try to focus on all of them, you won't learn any well at the outset.