Would I struggle much in a doctorate program?

When considering grad school potential, the first place to start is with current profs who can rate your suitability. It feels like so many kids on CC want to talk grad school, but miss the role of their advisors- in assessing, guiding…and recommending you, when you apply. Grad school doesn’t happen in a vacuum.

I know plenty of folks with MDiv degrees who never played any ministerial role. You need to be researching the various programs, as J points out.