Nerve removal

Is it possible to have your nervousness removed?? I guess some people call it alcohol. Not wanting to go that route. I have a date tonight and I can't get past my nervousness. It is kind of warm out today so I am slightly sweaty and that always makes me flustered.
I don't know what to wear - I brought a possible shirt but it shows my arms too much and they are definitely the first victim in the loose skin battle. I could wear a sweater but it is like 75 degrees outside right now. I coul djust wear what I wore to work with is a long sleeved white tshirt from Target. I mean, I might as well be upfront about the fact that this is pretty much what I will always look like. Ugh, I hate this. I brought my flat iron and all of my makeup but not any face soap so I can have a clean slate. I will just have to work around what is already on my face. I have 9 lipsticks/glosses sitting on my desk and I hate every single one of them right now. I am not feeling like I am particularly skinny today, either, so that doesn't help with the confidence.
Whose bright idea was it to get out there and start dating again? That person is an idiot.