The AV will argue both sides for you. Your answer is always just NO. As far as you're concerned there is nothing left to argue about, you don't use, no matter what. Your addiction Beast will always think it's a good idea, and you will always think it's a bad idea. Over time those neural pathways won't be as strong, a lot of this is habituated thought and patterns. You will form new ones, and it will get easier.
Have fun at the concert! Who are you going to see? I used to think I needed something to enhance the music or the experience, but that's just another lie my AV told me.
I'm on my way up north shortly for Canada Day weekend with a trunk full of fireworks instead of beer. Mommy's going to blow sh*t up instead of get loaded this weekend haha!