Since you are familiar with video editing concepts, you should be able to learn PPro quickly.
When I started PPro, I had already been using a different brand of software. When I started PPRo, I didn’t know any body who used it, so I learned on my own. I did buy Adobe’s Classroom In A Book, for PPro. The helped the transition. And I did put the book down, after I went through only half the lessions. That was enough to get familiar with the interface.
I never took a sit down class.
There are free tutorial’s on the web. See Steven Gotz’s and Wrigley’s web sites.
Just do it!