Hi & Happy New Year!
Glad to hear that you hope to become an AutoCAD pro and get certified!
I understand that you have limited time and resources to accomplish your goals and you have certainly made a great start at researching available options.
I will offer another option...
Post-secondary or community colleges offer some great training, depending on your location. CAD training can be found for AutoCAD and other 3D modeling applications but you must look into the details of an institutions programs.
If you enroll at an institution or if you take a training class at any legitimate educational partner or facility, you can register on the Autodesk Education Community and receive a 3-year license for Autodesk applications. That's a very generous amount of time permitted by Autodesk to learn any of their product offerings.
In my opinion, you could achieve a great foundational knowledge of the program by investing 1 evening a week for a semester at an institution with a good program. I have taught AutoCAD and Inventor since 2004 at just such an institution and The first level course that I provided enough that a good student could pick up on his/her own in finishing study toward certification. The foundation is so very important and I do not mean to say that it cannot be done on your own but it would not be my recommendation.
I have also heard of less worthy instructional programs where students are not provided well-formed course structure so it is critical that you investigate the training and seek as much validation of it's success as possible.
There are a host of textbook publishers to source for your needs. I used the Goodheart-Wilcox Comprehensive AutoCAD text for several years but cost and size became a problem for the students in my program so I switched to SDC. There are many texts offered by SDC and some were below my expectation. Again, investigate the content and fin d a solution that matches your goals. I could certainly let you know some that I prefer but I can't know what direction you wish to go (Architectural or Technical).
Ultimately, ACU or ACP certification is not specific to a architecture or technical drafting but instead it simply ensures your comprehensive knowledge of product usage across a spectrum.
I hope other users provide comment on your endeavor and I'll certainly clarify if you have other questions.
Welcome to the community and best wishes in your goals,
Blaine
Blaine Young
Senior Engineering Technician, US Army
