First of all - GOOD ON 'YA, MATE !!! Going solo on your first 'legal' birthday is great, really, wish I had done it. I think the first solo is something every pilot will remember forever. It's a mix of exhilaration and anxiety (and some other feelings as well). All I can tell you is: fly the airplane, you are now PIC. Period. I did a go-around on my very first solo, the approach just wasn't right. Use what you've learned. As you'll be flying from a proper airport, tell the controller (I'm sure he/she knows anyawy, but still) that you're on the first solo if they ask you to do something very complicated. They will help you if needed.
'Nough said, go on and enjoy flying
