Hi Michael!
Don’t be embarrassed.
Also no need to call yourself a nube (definition: ‘Someone so pitiful and idiotic the they have not even the meager skills to be titled a noob…’), but I guess you meant noob;)
I am not sure, but my best guess is that you accidentally pressed the O key and thus activated ‘Proportional Editing’:

Could be something else, but this sounds the most likely to me…