Hey, I started out in the same boat as you. I'm 19 and when I got my 210, it was my first car. I learned ALOT from it. Fought a lot of problems, spent a lot of money and time, and it all payed off. Ratsun.net is a lot of the reason that my car is what it is. It taught me a lot.
You're lucky to have a 510 as a first car. Lots of different directions you can go with it. Anyway you go, you will enjoy it. Any problem you have or any deadend, Ratsun is here to keep the wheels turning.