Dorothy,
Limitations are a wonderful way to grow. When you think about it, even exercises like weightlifting are ways of using limits (like putting extra weights on your body) to force growth.
If you're looking for good ways to use limitations to grow as a writer I recommend looking into E-Prime. It's a form of writing where you try to leave out any version of the copula ("to be" and all of its variations) from your writing. Doing so forces you to think about the words you use, and to practice using verbs more. I've written about it before and it is a fun practice.
Thank you for reading, and thank you for kindly taking the time to comment.
Best,
J