I would love some advice on what supplies I should have for my first day working.
Tolerance
Humility
Patience
Condoms (move that to the top of the list)
Great body image
A way to justify in your mind the idea of not harshly judging every new notch on your belt. (if you have enough clients, you will encounter just about every element of humanity you ever fathomed - most of them will be tolerable too, even if you don't want to rush home and tell your high school classmates that you
did such men)
Develop a knack for taking control of the intimate scenario. You're the one with the goods he wants, so you get to 'control' what happens, when it happens, and for how long it happens. If he isn't happy with that, the next guy will pay you the same donation and the line to see you will always be there AS LONG AS you are a sincere and honorable person beneath the desirable curves and naughty-seeming facade.
Finally, recite in your mind that
there simply WILL be bad Johns at times, and observe that you will have to make a special effort to
be sure that a bad experience one hour will not impact the service you offer the next client.
PS -
No drugs, no alcohol, just offer a sincere and willing partner for an enjoyable experience