I'm not a theist. I'm somebody who thinks dogmatism is ridiculous in all its forms. A couple of years ago I might have said I was agnostic or atheist. Now I think it's more agnostic 50/50 could go either way. I can't explain how we can understand our world if there is no being beyond being to explain how minds that can contemplate themselves arose. I'm about 99% sure evolution is a better explanation of life than creationism. But I've changed my mind about a lot of things.
Never say never again!
For me the lesson of my encounter with JW certaintism is not to replace it with another, but to embrace uncertainty, diversity, and the double edged persistent threat/possibility of being wrong.