Hi I would estimate between 1500-2000 grafts? Did you receive and estimate?
It is not clear what concerns you most: Is it that you will need continous surgeries or that you may not have enough donor hair for those surgeries?Because on the first point, it is clear that you will have continous surgeries as hair loss os a life long progression. So you are taking a long term commitment. On the second point, you may very well have enough donor hair for those surgeries given you age, family history and hair loss pattern
I have always been of the belief that for this type of case, the best age is beginning of 40s and not 30s, liek myself now. Because at that moment there you have even more certaintly and need less surgeries.