Joystick left Hand and right hand for unity game

My first question is what is the way to use to have left hand input and right hand input when your software seems to read only an x axis?
Knowing that it could compatible with an occulus for exemple
The software is paragliding sim

My second question is how can i replace tactile touch screen input on android? I know that joystick are understand by the phone thanks to a joystick test application but the game doesn't use it.

Thanks for your help