About F1 Visa validity if admission is Deferred

I have got F1 Visa last June. But I got my admission deferred due to medical conditions. I never start my study program. I am not changing my school. I will go to the same school. Should I go for visa stamping again, after I get deferral?

My F1 VISA is issued on 13th JUN 2019 and valid until 12th Jun 2024. Also the university sent me a new I-20 for the upcoming Fall semester. My SEVIS number dosen’t change.
However, I went to US last November. But I didn’t use my F1 visa at that time, I used ESTA visa. The stamp on my passport was ESTA for the purpose of visit not study.