1. Switch to a team (or company) where they are developing in the language you want to learn.
2. Work through the book "Computer Systems: A programmer's perspective"
Nothing beats daily programming in said language on a daily basis. Similar to yourself, I was predominately writing in higher level interpreted languages. Although I did teach myself C by working through books, writing programs and more, it was not until I started writing C on the job that really accelerated my learning. Very quickly, hit my fair share of segfaults ... discovered that we never called malloc (i.e. allocating memory on the heap) during runtime, stepped through our mark-and-sweep algorithm.
As for the book recommendation, it will cover all the above topics you are interested in such as heaps, stacks, memory management, etc. There are lots of other books that I studied during my CS education but self studying "Computing Systems: A programmer's perspective" really switched a light bulb on in my head.
As for the book recommendation, it will cover all the above topics you are interested in such as heaps, stacks, memory management, etc. There are lots of other books that I studied during my CS education but self studying "Computing Systems: A programmer's perspective" really switched a light bulb on in my head.