async def while_true():
    STARTED = False
    while True:
        if STARTED == False:
            print('BOT STARTED!')
            executor.start_polling(dp)
            STARTED = True
        print('loop')

async def on_startup(_):
    asyncio.create_task(while_true())

if __name__ == "__main__":
    executor.start_polling(dp, skip_updates=False, on_startup=on_startup)