The Collision doesn't work

[candid berry]

Hello I'm new to Godot (I Downloaded it a week ago) and I've been making progress on my little game I made on Scratch (The website). Recently I had a problem where the player collider is clipping though the Collider2D node and I don't know why. (Also I tried RayCast2D, so if anyone can give me another way on how I can use it for this problem that would be appreciated).
I'm going to post a video and pictures of what the problem is in a little bit just to give you an understanding of what I'm talking about (and the code to)

Here is the video I’m taking about

This is the Raycasting Code

extends RayCast2D

func _ready():
pass # Replace with function body.

func _process(delta):
if is_colliding():
print("Collision!")

(I'm about to go to sleep, ALL HELP WOULD BE APPRECIATED

extends CharacterBody2D

var speed = 300

func _process(delta: float) -> void:

var x_axis = Input.get_axis("ui_left", "ui_right")
var y_axis = Input.get_axis("ui_up", "ui_down")
var input := Vector2(x_axis, y_axis)

position += input * speed * delta

if input == Vector2(1,0):
    $AnimatedSprite2D.play("Move")
    $AnimatedSprite2D.flip_h = true
if input == Vector2(-1,0):
    $AnimatedSprite2D.play("Move")
    $AnimatedSprite2D.flip_h = false
if input == Vector2(0,-1):
    $AnimatedSprite2D.play("Move")
if input == Vector2(0,1):
    $AnimatedSprite2D.play("Move")
    
if input == Vector2(0,0):
    $AnimatedSprite2D.play("Idle")
move_and_slide()