Do you want to try wood or plastic?? If you've built lots of armor, there's nothing wrong with doing a plastic sailing ship before diving headlong into an unknown project in a new medium...
Revell has some basic ship kits like their Cutty Sark, which, if you're good with plastic, is a great first time kit. Try to avoid something as daunting as the Revell Constitution or the Heller Victory, bigger ships tend to create more unfinished models...
Big Jake and Bruce LeCren are our resident sailing ship experts. They can steer better in this area than I can, but that's my take on your first kit.
Jeff Herne
Modelwarships.com