Attaboy about the Jack Stud! Looking good! Carpentry can be like riding a bicycle. Once you learn the basics and principles, the skill is not forgotten even after a long wait or years of not driving nails. If I lived in the neighborhood I would help you frame and lift the wall sections. I built my shop wall sections in 12’ lengths so I could lift alone. That was 25 years ago. Now, those sections would need to be 8 feet long.
Here is a book that helped me build mine without help:
https://www.amazon.com/Working-Alone-Tips-Techniques-Building/dp/1561585459
