When is the right time to shave your head?

Bit backstory, I’m 19 diagnosed with Ewings Sarcoma 1 month ago, also became paraplegic because of sarcoma tough journey ngl. Did my first cycle of chemo and like 3 days ago my hair has started to shed, the being bald is not that big of a deal for me but like it’s just heavy shedding i don’t feel like it’s that much of problem as of now that i NEED to shave fully bald. My questions, When is best to shave? Does the shedding get worse? i’ve seen people lose nodules of hair, and What are yall stories with losing hair and when did yall shave?