There's no reason for me to go for PT certification.   A:  I don't use ProTools,  B:  I'm not in this for commercial reasons.
At the beginning of each semester,  we tend to get a bunch of users from LA Film School.   I've only seen one or two come back and contribute to other threads.    I don't remember seeing anything about what they are learning.   So are you working with prerecorded tracks?   You say it's an early 80s rocker.   I assume you are learning mixing. plugins, etc.