Agree with Patrick Krappie, as a basic starter, get the H16 tuning guide and learn the basic techniques of sailing the H16. Learning how to power up/down your rig on/off the water will help you control stronger winds.
Whole heartedly agree with getting yourself a solo right system. This needs to be done first so you can relax and enjoy your day on the water. A mast-top float also helps if you'll be out alone in stronger winds to keep yourself from turtling.