I agree with previous comments.
The only thing I wanna add is: If you want to start making gigs frequently use this gig as a bridge: make it looks professional, also act like this. If you have them, put some business cards around the room. Thats the way to get people who will most likely be the next to hire you. Because they are you relatives don’t make it half average.
Hope you’ll have great fun and no troubles. 🙂