How long does it take to get a motorcycle license in Texas?

Ok im 18 im wanting to get my motorcycle license like right now. But i just need to know how long it will take from start to finish because im leaving in 3 weeks for Mexico Vacation. Im going to buy a 2011 Ninja zx10r soon, I drive my friends zx10r 2011 all the time so i know how to ride!! lol so no hater comments.