pass your sell-by date
pass (one's) sell-by date
To no longer be useful, skillful, or competitive in a particular activity, job, or role due to old age. I think it's important to throw in the towel when you pass your sell-by date. There just came a day when I realized I had passed my sell-by date, and that I could no longer perform my duties as the company required.
pass your sell-by datereach a point where you are useless or worn out. informal
A sell-by date is that stamped on perishable goods indicating the latest date on which they may be sold.
1998 Spectator He would probably have to turn on them [his colleagues] when, in his view, they had passed their sell-by date.