Character wont stop Bouncing

I am making my first ever game in Unity a 2D platformer, I am just getting the basic down first and I have run into a problem, My character wont stop bouncing on the floor. PLEASE HELP

UPDATE, I removed the floor objects and replaced them now i dont bounce, i just cant jump.

Here is my code, I followed the Muddy wolf Games tutorial:

public class PlayerMovement : MonoBehaviour { public float movementSpeed; public Rigidbody2D rb;

 public Animator anim;

 public float jumpForce = 20f;
 public Transform feet;
 public LayerMask groundLayers;

 float mx;
 
 private void Update()
 {
     mx = Input.GetAxisRaw("Horizontal");

     if (!Input.GetButtonDown("Jump") && IsGrounded())
     {
         Jump();
     }

     if (Mathf.Abs(mx) > 0.05f)
     {
         anim.SetBool("IsRunning", true);
     } else
     {
         anim.SetBool("IsRunning", false);
     }

     anim.SetBool("IsGrounded", IsGrounded());
 }

 private void FixedUpdate()
 {
     Vector2 movement = new Vector2(mx * movementSpeed, rb.velocity.y);

     rb.velocity = movement;
 }

 void Jump()
 {
     Vector2 movement = new Vector2(rb.velocity.x, jumpForce);

     rb.velocity = movement;
 }

 public bool IsGrounded ()
 {
     Collider2D groundCheck = Physics2D.OverlapCircle(feet.position, 0.5f, groundLayers);

     if (groundCheck == null)
     {
         return false;
     }
     return true;
 }

}