There seems to be some confusion since you are looking at the encoded version of the Bitcoin address.

There are exactly 2¹⁶⁰ possible addresses as long as we keep using RIPE-MD160.

2¹⁶⁰ is 1,461,501,637,330,902,918,203,684,832,716,283,019,655,932,542,976.

We don't have to guess at this by looking at the ASCII encoded values (the human readable form you are seeing).

Do you often worry that someday all of the oxygen molecules in the room you are in will spontaneously drift away from the part of the room you are in and you would die?  After all, that could happen, right?  It is not impossible, right?

That should be a bigger worry for you than running out of Bitcoin addresses.