All those that have their tongue pierced, Will this work?

I have my earlobes pierced twice and thats it, at some point I want to get both Cartilage, tragus, and navel piercing. I'm thinking of also getting a tongue. What are your experiences with your tongue piercing? I am turning 18 in May of 2012 and my B-Day is on a Friday so I will have the weekend. I will still have a month left of school. Will my piercing be somewhat healed, and I wont be talking with a lisp and will the swelling go down with the weekend? Will I be able to put in a retainer in after a month of getting it? Or should I just stick with getting a navel Piercing when I turn 18? Thanks for any help.