Excellent, glad to hear that you found the resources you need!
Regarding Django vs Flask -- they're both equally modern, but Django does a lot more for you out of the box, while Flask tends to be extended to provide extra functionality with explicit third-party extensions. It's really a matter of personal taste, and what kind of site you're building. We use both internally inside PythonAnywhere -- our main site (the one hosting these forums, for example) is Django, but a lot of our internal microservices are Flask.
Either is a great choice for when you're getting started -- and TBF Django probably has more tutorials available.