I hope you're recovering well from said stressful situation. :(
C++ Primer Plus is a bad book (really, it is:
http://www.amazon.com/review/R3PBNZTSMYMTQT ), and I'm not surprised you're having trouble with it. Depending on what sort of book you're looking for, I'd recommend all of the books listed under the "Learn More" section here:
https://isocpp.org/get-started
For tips on real-world programming and good practice, Effective Modern C++ might be of interest.
https://www.amazon.com/dp/1491903996/
If I were to pick one book that had a massive impact on the way I've thought about programming in my earlier days, I'd pick Design Patterns: Elements of Reusable Object-Oriented Software. It's a bit dated, but it's still a good book in my opinion.
https://www.amazon.com/dp/0201633612
There's another active thread in this forum that suggested
http://cppinstitute.org/ for study, which is a free resource. Disclaimer: I haven't done much research into the quality of their coursework, but the model of certifications for programmers is one that appeals to me. If their qualifications are actually worth anything, that could be valuable in starting a career in programming.
Qt has issues, but honestly it's one of the the best popular frameworks for graphical user interface work in C++. I'd stick with it.
Take care and happy programming, alright?
-Albatross