My advice to fellow woodworkers is to download a free copy of SketchUp, watch some video tutorials and give it a shot. For me, I think what helped the most was having an actual project that I wanted to design. It sort of put a fire beneath my ass to seriously learn how to use the program. More so than just building your basic box.
Thanks for watching this series. Im not sure how useful it was, but maybe you picked up something out of it.