About to start surfing, need a little advice

Hey everyone, I've wanted to learn to surf for a long time, and I'm planning on finally doing it in a few days with a friend. I'm looking forward to it, I just have a couple questions to help me prepare and be successful at learning.
1. What would be the best size board for me to start out on? I've asked several people, and the consensus seems to be a longboard from 7-8 feet long, my friend says he has a funboard I can learn on, but I've heard from some people that funboards are not good to learn on, and some others say you can learn on them. I'm 24 yrs old and about 5-foot-7 and really skinny, if that helps any. It seems like anything 8-feet or longer would be too hard for me to carry around and paddle on.
2. About how many sessions does it usually take to get the hang of the basics (i.e. paddling, duck-diving, and popping up/catching waves)? I don't care about being good right now, I just want to be good enough at the basics so that I can buy my own board and go out there myself and enjoy it. I already skateboard, how much does that help?
3. What precautions should I take so that I don't get hurt when falling off the surfboard? I broke my hand skating a few months ago, it's fully healed, but I want to make sure I don't reinjure it, and it would kinda suck if I hit my head on the board or anything else like that.
1. What would be the best size board for me to start out on? I've asked several people, and the consensus seems to be a longboard from 7-8 feet long, my friend says he has a funboard I can learn on, but I've heard from some people that funboards are not good to learn on, and some others say you can learn on them. I'm 24 yrs old and about 5-foot-7 and really skinny, if that helps any. It seems like anything 8-feet or longer would be too hard for me to carry around and paddle on.
2. About how many sessions does it usually take to get the hang of the basics (i.e. paddling, duck-diving, and popping up/catching waves)? I don't care about being good right now, I just want to be good enough at the basics so that I can buy my own board and go out there myself and enjoy it. I already skateboard, how much does that help?
3. What precautions should I take so that I don't get hurt when falling off the surfboard? I broke my hand skating a few months ago, it's fully healed, but I want to make sure I don't reinjure it, and it would kinda suck if I hit my head on the board or anything else like that.