M.R.
I think you can go to the DPS office and get a drivers manual guide and study it and go to the DPS office and take the test and get your permit and to do the driving part I believe that you have to wait 6 months to take the driving part of the test and you have to have so many hrs of driving and 6 months and you go take the test and get your license.
My son has his permit and has been driving w/me and his dad is the car and will go to take his driving test in Aug.
Here is the link.
http://www.dmv.org/tx-texas/department-motor-vehicles.php
Good Luck
M.