The Basics of Surfing?

Im 14 years old and I found my calling; surfing! Ive played dozens of sports and been successful in Soccer, Swimming, Skiing (snow and water), and Tennis! But I just got back from a trip that led me to try surfing, I fell in love with the sport. My dad was amazed at what I could do the first time i got on a board, i just watched the pros and copied them. I want to surf for the rest of my life but i live no where near any surf spots ): and i am familiar with the ocean, the waves, the currents, the Rip, and the swells, so don't worry ive been on a boat since i was six months old. Anyways I could use some pointers in the sport, like do you have to wear a wet suit? If a 5'4" 110 pound girl was a beginner, what surfboard would you recommend? What should i do to get into shape to make surfing easier i .e. running, weights, etc.? What is (in your opinion) the best online surf retailor? And if you have any more pointers that would be great! Thanks (: Keep surfing