It is best to have a buddy to hike with. Makes it safer and more fun. At the least, make sure to have someone meet you at different points along the trails so you can replenish your supplies. You can only carry so much. Everyone on the AT has a nickname..did you know that? Make sure you also have a tetanus shot before you go and really good gear. Check with a good brand name hiking store and tell them what you plan to do - they can give you good tips. You can go at your age; just be careful. And have fun!
