@Kevin-Cochran First off, glad to hear you are ready to really take your art seriously, so good luck with that.
To start though I would of course watch the classes here on SVS and see what you can get out of them. Definitely do the Visualizing Drawing in Perspective, and Mastering Perspective classes by Jake Parker.
Outside of SVS, if you want to do a deep dive into perspective I would suggest the YouTube channel "The Drawing Database: Marc Leone NKU". He goes into such depth with everything. There are hours and hours of just perspective rules and demos. It is a seriously underrated resource.
So now that you have some places to start it should be said that you won't get anywhere without loads of thoughtful practice. Make sure you are putting in the time and not trying to find shortcuts, because there aren't any when it comes to learning the fundamentals.
Hope this helps, and again, good luck!!