Animating character with mobile joystick

Hi, I am new to Unity and C# programming. I have been working on a 3d mobile game and recently got stuck in making the joystick for the character's movement. I watched all Youtube videos and googled a lot, but couldn't find any solution as I still don't understand how the C# script for joystick works. All of my movement and animations are ready and they work fine on the keyboard. But I want to assign the animations and movement to the joystick. I want different animations to be played when the joystick is pulled at different angles. Please help.