Pivoting back to industry from grad school

I had hoped that graduate school would introduce me to interesting engineering and analysis problems, and help me hone my C++ skills, but my experience has been more focused on wrangling undergraduates, grant writing, and doing very unintellectual work with basic simulation software. In short, I would like to return to being a C++ developer, but my skills have gotten a bit rusty over the past year away from industry. Does anyone have any recommendations? Should I apply to internships that have the possibility of fulltime work? Shirk my current responsibilities and work through Scott Meyers and hack on some projects? I'm sorry if this seems like a dumb thing to ask. I made the mistake of going to graduate school against the advice of just about everyone, and I learned that I shouldn't be so intellectually stubborn. I can send my resume and code samples to anyone interested if that will help with advice. Thank you!