can someone help me with calling functions without calling them in order

Question

I am trying to make a selection screen but only the first function in order works does anyone know how to fix this?

while mainloop:


if characterpick: 
    if selection_elf():
        print("elf")
        characterpick = False
    elif selection_berserker():
        print("elf")
        characterpick = False
    elif selection_mage():
        print("melf")
        characterpick = False



if start():
    characterpick = True
    background_image = pygame.image.load("character selection screen.png")
    background_image = pygame.transform.scale(background_image, (750, 750))

functions:

selection_elf function:

def selection_elf():        
for event in pygame.event.get():
    if event.type == pygame.MOUSEBUTTONUP:
        mouse_pos = pygame.mouse.get_pos()
        if mouse_pos[0] >= 255 and mouse_pos[1] >= 195 and mouse_pos[0] <= 503 and mouse_pos[1] <= 500:

            return True

selection_mage function:

def selection_mage():
for event in pygame.event.get():
    if event.type == pygame.MOUSEBUTTONUP:
        mouse_pos = pygame.mouse.get_pos()
        if mouse_pos[0] >= 510 and mouse_pos[1] >= 195 and mouse_pos[0] <= 758 and mouse_pos[1] <= 500:

            return True

selection_berserker function:

def selection_berserker():
for event in pygame.event.get():
    if event.type == pygame.MOUSEBUTTONUP:
        mouse_pos = pygame.mouse.get_pos()
        if mouse_pos[0] >= 0 and mouse_pos[1] >= 195 and mouse_pos[0] <= 248 and mouse_pos[1] <= 500:
            
            return True