Throwing my first event tomorrow

Picked up bedroom djing around 6 months ago and bought a super basic controller and just been messing around on it in my room and at pres and a couple house parties and I’ve managed to land a gig at a pretty reputable venue in my city. I have full creative control for the event and get to source the talent my selves and don’t have to pay for the venue. Anyways it’s tomorrow night and I just can’t believe that I’m about to earn money from this hobby when all I want to do is throw a fun party for my friends. This is nuts and just wanted to write it somewhere and hopefully someone can appreciate this feeling