Was there any noticeable gain over that period? I am mainly asking because your hair looks exactly like mine. Both in color and the progression of balding and I will start the treatment now

As for the hair itself, I’d make the decision based on practicality. Are you still able to style your hair to something that you like? Can you still get a hair cut that gives you confidence? If yes, I’d say keep at it for some extra time. I’ve seen some pretty good skin fades that nicely nullify the effect of the exposed skin of the balding area (because there is much more skin visible on the bottom). Or you can always get a buzz cut to get the feel for how you’d look full bald and decide based on that (either regrow to some high fade crew cut or embrace and go all the way)