Hello! Need your help selenium + python huge request for help (3 days can not decide)?

Question

Python

Hello! I need your help.
In general, I need to poison comments in yotube (under different accounts)
I did almost everything I need, I can’t get selenium to write a comment in the line (I tried everything, I can’t understand what’s wrong)
browser=webdriver.Chrome( https://youtube .com/watch)
browser.get(" https://www.youtube.com/watch?v=4ZHwu0uut3k ")#for example
place_block = browser.find_element_by_xpath('//*[@id="mirror"]') #tried everything and delay and scroll, wait until it loads - nothing helps
place_block.send_keys('dsfwefr gwerg erwrg efwg reg ')