It appears that your paperclip didn't contact the pins, so need to bend the paperclip slightly more. You have to be more carefully to not damage the pin.
First, if your Switch is black screen so you may be in RCM so need to send a payload via USB until you see commands, so there is no way to tell if you are in RCM until you send a payload, however if Nintendo logo boot up so you aren't in RCM.