Learning modeling process method

Hello,
im begginer i want to ask about learning procces.
Is good to make one project organic and after hard sruface and after again organic.
I ask cause i dont want to be confused or maybe there is not huge difference between organic and hard surface so i need no care?
Or is better to stick with organic fo couple months and after make hard surface stuff?
What do you guys prefer?
Thank you :slight_smile: