I neglected to mention two things: First, Thinking in C++ assumes you are a C programmer. You can still use it, of course. You just may need to look up a few things. Second, at times it is a bit unclear, and can be difficult to understand.
Just take a step back, and ask a question in either case and you should be fine. There are plenty of C++ programmers here on these forums, so don't be shy and ask for help if you need it. We all need a hand sometimes.