Why can’t you find an apartment number? Aren’t there numbers on doors?You push the button and they buzz you in or you call them that you are outside.
Well if the reason you have hard time finding a job is not being able to pass drug test or other substance abuse issues, then I can’t advise on that. But I was never drug tested in retail. They don’t care about that.
If you have a prescription for Valium, you should be able to show it if they do test and it shows as positive. But again they typically don’t test.
As I suggest before, speak to disability vocational services and let them help you finding job and providing training.