HELP! horseback riding 1st time!!!?

It will definitely be fun. Be sure you are at a reputable barn and that the instructor knows it's your first time out. In the beginning you'll learn how to mount the horse and how to act/walk around it. Then it will probably be walking (the horse does the walking) with a trainer by your side holding a lead. You'll learn how to hold your body, where to point your head (that's the important part) and how to let the horse know what you want. Horses buck, but beginner's horses walking the ring won't. For the first 10 minutes you'll spend most of your effort just staying in the saddle. Then ....magic! it will become fun as you get into the rhythm of it all. Remember a horse is basically a timid prey animal, always on the lookout for something coming to eat it and always eager to follow the lead of whoever is in control (that will be you). Every one has a personality, and they'll almost surely give you a gentle animal who is great for beginners. It is very, very unlikely that you or anyone will fall off while walking with a trainer leading the way. Even 4 year olds can stay on easily. Best of all -- it's fun! next lesson, y ou migh start to learn to trot and steer the horse without a helper by your side. Good luck.