Reading a K&R book and not writing code is like reading a book on weapons and never actually shooting. Yes, you've read in a book, that it works this way, but you have never encountered the typical problems that arise while doing this. Without practice such "knowlegde" is worth very little.
Plan to spend 2-3 years slowly writing small programs for solving different tasks in C. This will count as real experince. C provides delayed gratification for your effort.