fishless cycling my 10-gallon tank

Hi Cooper, welcome to the forum.

Let's see if there could be possible problems to your fishless cycling.

First,
I am not familiar with the product "expert janitorial quality smelling salt". Could you please confirm the product has nothing but ammonia? If there is anything else in there, the cycle might not even start. So double-check the ingredients first.

Second,
It is true that too high concentration of ammonia can interfere with the fishless cycling. They can become toxic to even the bacteria feed on them. So make sure the ammonia s no more than 3~4ppm.