Coyote jump is not working

Godot Version

godot v4.2.1


I tried to add coyote jump to buılt in character controller code but it just lets you to jump infinitely

here is the code:

extends CharacterBody2D
var SPEED = 400.0
const JUMP_VELOCITY = -600.0

Get the gravity from the project settings to be synced with RigidBody nodes.

var gravity = ProjectSettings.get_setting(“physics/2d/default_gravity”)

@onready var cyt = $cyt

func _physics_process(delta):
# Add the gravity.
var was_on_floor= is_on_floor()
if not is_on_floor():
velocity.y += gravity * delta

# Handle jump.
if Input.is_action_just_pressed("jump"):
	if is_on_floor() or cyt.time_left>0.0:
		velocity.y = JUMP_VELOCITY

# Get the input direction and handle the movement/deceleration.
# As good practice, you should replace UI actions with custom gameplay actions.
var direction = Input.get_axis("left", "right")
if direction:
	velocity.x = direction * SPEED
	velocity.x = move_toward(velocity.x, 0, SPEED)

var jll= was_on_floor and not is_on_floor() and velocity.y>=0
if jll: