Automatic answer in discord without bot

Hello,

I'm a neophyte with those kind of stuff but I'd like to know if it's possible to answer automatically a post in a specific server channel depending of that message. 

Example : If the message "Please type 2" appear in that channel, my account would automatically type 2 as answer.

First, would it be considered as self-bot ? If it's possible can someone explain me how ? Also, would it be the same even if the "please type 2" in included in an embed ?

Last thing, if the message "please type 2" change into a "please type 3", it could be nice to have a way to control this change and still send a message but with a 3 this time.

Thanks you for reading <3