At what point are we classed as cancer free

At what point is it we are classed as cancer free. Was diagnosed 11/08/23 with invasive lobular. Had two failed lumpectomy’s. Ended up with smx 14/2/24. I had full clearance aswell with first op.  I said no to chemo but my radiotherapy starts next Thursday and I’m hormone therapy for 5 years. Just wondered if we are ever classed cancer free? 
thank you for reply’s 

Kirsty :)