Why Can't I Loft This?

Your sketches have tiny gaps at the indicated locations. Looks like a short segment of vertical line didn't get mirrored.

1041/5000
You should know that a skim for smoothing must be perfect if you want to avoid the many problems that may arise. Sketch front, must not contain circles inside. Your sketch contains symmetries whose right segments are divided into two ... not a good idea. Eprofiles are not all closed! Check well. So you have too many steps, too many sketches. Two would be enough if we added rather guide curves. In general, the more closed profiles you have, the less smooth the software will be. Finally, a spline is often easier to smooth and gives better results when the manufacturing is not done using bends but rather by manual forming. In any case, if your piece is realizable in sheet metal, it is necessary to make transition folds. Which again would require only two profiles, but this time without guide curves. The example does not conform to your drawing but illustrates a procedure that I suggest.

Thanks Guys! I really appreciate you all taking time to help me out!

I've done 2D cad for years but I'm new to 3D cad. I'm loving it!

I've been going through some of the SolidWorks tutorials and I am learning slowly. I thought about taking a college course but I think they would just teach me what I've already learned.

Much respect to all of you who do this for a living!