If you are predicting differing advice from different doctors (and other sources), you're probably correct.
There are new and differing reports, predictions and advice every day, depending on what is the latest from states' health departments, new journal articles, pronouncement from professional associations, promising vaccine announcements followed by news of delayed approval, arguments about variant-specific vaccines vs more "universal" vaccines effective against more strains, local "waves" - it is never ending.
Right now Covid is a new disease and we don't know very much. I am amazed that we got any vaccine against it developed and approved in less than a year.
I was holding off on booster #2 until I got a little closer to my next planned travel or gained more information, then I tested positive for Covid on Mother's Day (despite rigorous masking, distancing and sanitizing) - scratch the planned brunch. At least I am not "real sick."