IMO the bigger issue is not learning how to prompt, it's learning how to evaluate LLM output.

If you can tell whether the output is good or bad, and especially if you can tell why it was good or bad, you can adjust your prompt accordingly.

To know how to evaluate LLM output, you need critical thinking, domain experience, taste, and agency (to know what you are trying to accomplish). LLM does not do those things for you.