How to Overcome Nervousness Before a Night Out?

I'm going out tonight and I'm so nervous. I haven't partied since my early 20s. Those times I was always on the go. If you catch me home you're were lucky, but due to unfortunate events life humbled me in so many ways. Can't say I miss the life much but I'm kinda excited to get dressed up in a different way and do something other than dinner and movies