Simple frc tank drive help

I am new to the unity world and coding. I can operate through unity fine, I just don't have much ecperience with coding at all.

I am trying to make a driving simulator for the FIRST FRC robotics competition and I need help with making the driveable robot.

The robot drives like tank drive. I have two joysticks, one for each side of the robot. Each joystick should be able to drive one side of the robot, forward and back. and so that the speed of the side is relative to how far the joystick is moved.

I just have no idea where to start. Please help. thanks

 

Start here: https://unity3d.com/learn/tutorials/s/scripting
Because you won't get very far with little - no programming experience.