[Python] Python sprite visible

Apparently, I am making a game which you have to roll the blue block to the "Touch me" text, when I run the code, the Blue block is not visible and there are no problems found in VS code. I have no idea what's happening and I'm really new to coding. Any ideas how I can solve this problem and make the blue block visible?

import pygame, sys
WIDTH, HEIGHT = 800, 600
BLUE = (0, 0, 255)
WHITE = WHITE = (255, 255, 255)
GREEN = (0,255,0)
# money = 100

screen = pygame.display.set_mode((WIDTH,HEIGHT))
pygame.display.set_caption("I wanna make a game")
square_size = 50
x, y = WIDTH // 2, HEIGHT // 2
speed = 5



class Sprite(pygame.sprite.Sprite):
def __init__(self, color, height, width):
super().__init__()
self.image = pygame.Surface([square_size,square_size])
self.image.fill(BLUE)
self.image.set_colorkey(BLUE)
pygame.draw.rect(self.image, color, pygame.Rect(0, 0, width, height))
self.rect = self.image.get_rect()



def moveRight(self, pixels):
self.rect.x += pixels
def moveLeft(self, pixels):
self.rect.x -= pixels
def moveUp(self, speed):
self.rect.y += speed * speed/10
def moveDown(self, speed):
self.rect.y -= speed *speed/10



pygame.init()
pygame.font.init()

player = Sprite(BLUE, 30, 30)
all_sprites_list = pygame.sprite.Group()
all_sprites_list.add(player)
player.rect.x = 50
player.rect.y = 50

running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
font2 = pygame.font.SysFont('arial.ttf', 40)
touchme = font2.render('Touch me', True, WHITE)



keys = pygame.key.get_pressed()
if keys[pygame.K_w]:
player.moveUp(10)
if keys[pygame.K_s]:
player.moveDown(10)
if keys[pygame.K_a]:
player.moveLeft(10)
if keys[pygame.K_d]:
player.moveRight(10)

x = max(0, min(WIDTH - square_size, x))
y = max(0, min(HEIGHT - square_size, y))
screen.fill((0,0,0)
screen.blit(touchme, (10, 300))

all_sprites_list.update()

all_sprites_list.draw(screen)
pygame.display.flip()
pygame.time.Clock().tick(60)

pygame.quit()
sys.exit()

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