Older folks remember.... next time, keep buying on a regular basis and you won't be too concerned about an ammo shortage that is short term (months). However, psychologically, the shortage does affect my desire to use up what I have and I have a good supply. I know I wouldn't be shooting at all if I only had a couple boxes of the calibers I shoot.
My rule of thumb is to buy 2x what I shoot. And I seldom made a trip to Walmart that I didn't buy at least some ammunition of some kind and I generally go weekly. Walk into a gun shop to look around... buy a box of ammo. It builds up.