Wow, I see so much improvement from the first to the last boxes! I sincerely hope you have contintued with your art.

The lines are actually looking fairly confident, especially considering that you have added weight to the outer lines. The hatching looks good. I like to warm up sometimes by just loosely drawing lines over a scrap page, to remind myself what confidence feels like, then I do the lines that need to "aim."

As far as foreshortening, if you use the "y" method, here is where it's determined--play with the angles of segments "a" and "b" as shown in the diagrams: https://imgur.com/a/Dyb87PK

Good luck, and keep up with your artwork!