Rotating left or right via keyboard input

I’ve searched around and cant find anything of use.

I’m trying to recreate lunar lander(http://moonlander.seb.ly/) and am tackling the rotation of the ship but with my current script, the ship will constantly rotate to the right and when I do press input, it will rotate it left correctly.

In my input manager I have ‘Horizontal’ set up to accept the negative button as ‘left’ and positive as ‘right’

Here is my script:

   public class RocketController : MonoBehaviour { 
    private Rigidbody2D rocket;
    public int rotationSpeed;

	void Start () {
        rocket = gameObject.GetComponent<Rigidbody2D>();
	}
	

	void Update () {
        if (Input.GetButton("Horizontal"))
        {
            rocket.transform.Rotate(Vector3.forward * rotationSpeed * Time.deltaTime);
        }else if (!Input.GetButton("Horizontal"))
        {
            rocket.transform.Rotate(Vector3.back * rotationSpeed * Time.deltaTime);
        }
	}
}

What your doing in the code is this:
IF (a left/right button is pressed) THEN (rotate to the right);
ELSE IF ( left/right button is NOT pressed) THEN (rotate to the left);

======================

To fix this simply do the following in actual code(so dont copy-paste this because its not actual code): IF(Input.Get(“Horizontal”) >0.5f) THEN (Rotate right); ELSE IF(Input.Get(“Horizontal”)<-0.5f) THEN (rotate left);