Unity 2d, Need help with Player Sliding when Swiping Down

I am trying to recreate my brother's project, I'm a completely new to Unity and programming, I watched a few tutorials to change my brother's key controls to touch, it worked till jump but after jump the game does not work the way intended, i have Slide as true as parameters for Run->Slide and for Slide->Run I just use exit time, in this scenario the player infinitely slides when i swipe down, when I swipe up, slide animation plays and at the end when he is about to touch the ground his jump animation plays, when I swipe down for a second time, he runs normally. When I give parameters for Slide->Run his movement is completely wrong, he uses a random frame for slide and no animation occurs when swiped down and he infinitely slides, when I swipe up, his slide animation comes with jumpforce, now I'm certain there is a problem with the code, any help please. I would really like to complete this project, thank you for your time.

void Update() {

     grounded = Physics2D.IsTouchingLayers(myCollider, whatIsGround);
     if (grounded)
     myAnimator.SetFloat("Speed", myRigidbody.velocity.x);
     myAnimator.SetBool("Grounded", grounded);
     {
         myRigidbody.velocity = new Vector2(moveSpeed, myRigidbody.velocity.y);
     }
     foreach (Touch touch in Input.touches)
     {
         if (touch.phase == TouchPhase.Began)
         {
             fingerStart = touch.position;
             fingerEnd = touch.position;
         }
         if (touch.phase == TouchPhase.Moved)
         {
             fingerEnd = touch.position;
             if (Mathf.Abs(fingerEnd.y - fingerStart.y) > 250)
             {
                 if (fingerEnd.y - fingerStart.y > 250)//up swipe
                 {
                     if (grounded)
                     myRigidbody.velocity = new Vector2(myRigidbody.velocity.x, jumpForce);
                 }
             }
             if (Mathf.Abs(fingerEnd.y - fingerStart.y) > -250)
             {
                 if (fingerEnd.y - fingerStart.y > -250 && !sliding)//down swipe
                 {
                     sliding = true;
                     myAnimator.SetBool("Slide", true);
                 }
                 if (sliding && !(fingerEnd.y - fingerStart.y > -250))//up swipe
                 {
                     myAnimator.SetBool("Slide", false);
                     sliding = false;
                 }
             }
         }
     }
 }

}