I found my new ranked support

You had more CS than your ADC which meant you probably took some during laning phase which probably contributed to her poor score. While you may have done well. If you didnt snowball to infinity the fact that you took cs and the such means that you put your ADC at a distinct disadvantage so it could have been essentially a 3v5 where you werent all that strong, your adc wasnt all that strong, your team lacked the Utility a support would bring and you would have been steamrolled.

if I see anybody declare support yasuo I'm banning the shit out of them. second of all, your cs for a support is utterly obscene. you're the reason kallista did horribly. you literally csed more than she did.