I haven’t used QMF is a long time. But when I learned it, I never took any classes. One can play around a little, read the manual and the user guide, and then dig in. Same approach to learning most anything in this business.
You might also check out your local user group(s). Contact other businesses in your area and talk to the staff there.
As far as SkillSoft classes, why not ask the vendor which sequence?