Transforming position in y-axis (going in the middle) in Unity

Questions & Answers
1

I am making a 2d game where an object goes up, down or in the middle with given Input.
But when the object goes to the middle with GoMiddle() it starts glitching and it can’t go back up or down. I want to fix this. This is my code :-

Vector2 Pos;

public bool DownKeyPressed = false;

public bool UpKeyPressed = false;

public bool MiddleKeyPressed = false;

 void Update()
{
    Pos = transform.position;

    UMDCOntroller();

    transform.position = Pos;
    print(Pos.y);
}

void GoDown()
{
    if (Pos.y >= 1.2f)
    {
        Pos = Vector2.Lerp(Pos, new Vector2(Pos.x, Pos.y - 1.2f), 0.1f);
    }
    else
    {
        DownKeyPressed = false;
    }

}

void GoUp()
{
    if (Pos.y <= 2.8f)
    {
        Pos = Vector2.Lerp(Pos, new Vector2(Pos.x, Pos.y + 1.2f), 0.1f);
    }
    else
    {
        UpKeyPressed = false;
    }

}

void GoMiddle()
{

if(Pos.y < 2)
    {
        Pos = Vector2.Lerp(Pos, new Vector2(Pos.x, Pos.y + 1.2f), 0.1f);

    }

else if(Pos.y >= 2) {

        Pos = Vector2.Lerp(Pos, new Vector2(Pos.x, Pos.y - 1.2f), 0.1f);

    }
    else
    {

        MiddleKeyPressed = false;
    }

}

void UMDCOntroller()
{

    if (Input.GetKeyDown(KeyCode.S))
    {
        DownKeyPressed = true;
        
    }

    

    if (DownKeyPressed)
    {
        GoDown();
        UpKeyPressed = false;
       
    }

    if (Input.GetKeyDown(KeyCode.D))
    {

        MiddleKeyPressed = true;
    }

    if(MiddleKeyPressed)
    {

        GoMiddle();
        

    }

    if (Input.GetKeyDown(KeyCode.W))
    {

        UpKeyPressed = true;
    

    }

    if (UpKeyPressed)
    {

        GoUp();
        
         
    }

}
2

void GoMiddle()
{
float epsilon = 0.1f;
if ((Pos.y >= 2 - epsilon && Pos.y <= 2) || (Pos.y <= 2 + epsilon && Pos.y >= 2))
{
Pos.y = 2;
MiddleKeyPressed = false;
}
else if (Pos.y >= 2)
Pos = Vector2.Lerp(Pos, new Vector2(Pos.x, Pos.y - 1.2f), epsilon);
else if (Pos.y < 2)
Pos = Vector2.Lerp(Pos, new Vector2(Pos.x, Pos.y + 1.2f), epsilon);
}