How to calm pre-appointment nerves

[AlwaysAddicted]

So I have been a member on this site for a little over a year and have accumulated all of 1 escort meeting, reason being is my nerves are too strong to push through, I'm okay untill I decide to make a phone call then I'll talk myself out of it, bit the bullet this afternoon and booked an appointment but I was literally shaking on the phone it must sound so juvenile to the escorts, does anyone have any tips to lower the ol' heart rate through all of this.