In addition to all of the above, I'll recommend this:
If you are going to use Labview, I strongly recommend watching the tutorial videos on
http://www.frcmastery.com. They are excellent, and really helped me when I was learning Labview.
Spend some time looking over the default code.
If you're also doing any electrical, make sure you completely understand the electrical rules and spend some time with the
robot data connectivity diagram. If you aren't it's still a good idea, since you're going to need to understand what things plug in where to code for it.
Assuming the presence of a wired up and powered control system, a speed controller, and a motor, try some simple testing. A good beginner problem is to write some simple code to spin a motor when a joystick button is pushed, and stop when it is released. Once you can do that and test it, you have learned how to tell the robot about a new device, read joystick status, do very simple logic, and set a motor speed. Have your mentor and/or lead check your work before you test it.