Has anyone hired a programming/CS tutor?

I work in embedded and mostly use Python to call underlying C. I'd like to understand what's going on "under the hood". I don't have a formal CS background.

bottomupcs has been an awesome resource! teachyourselfcs is a good starting place, but I'd like to accelerate my progress.

My understanding is, in a CS program, courses such as Data Structures and Algorithms - theory, is taken at the same time as Networking, Operating Systems, and Distributed Systems - applications.

I view studying CS as a long term goal. Short term, I want to build up C literacy and contribute more to my team.

Has anyone tried hiring a programming/CS tutor to help curate a study plan and review code? If so, what was the experience like? Would you suggest a different path?

I anticipate a high hourly rate for a tutoring service. Any suggestions for vetting a tutor?