I'm about to go into my third year of my (social sciences) PhD but am expecting a 6 month funding extension so probably have 18 months to go. I just passed confirmation/transfer at the second attempt. I've been slowed down by a perfect storm of supervisor problems, mental health problems and then COVID-related childcare issues.
I want to change main supervisor because our communication styles clash (we just rub each other up the wrong way), because my thesis has evolved to be something that I feel she doesn't 'get' and because I just don't think she has faith in me. I never chose her originally, she was selected by my previous supervisor who left and is now my external. My external is a brilliant scholar but so busy I only get flashes of her brilliance from time to time...
I've found someone willing to take on my supervision who I 'gel' much better with and my Director of Studies is supportive. But I don't know how to raise it sensitively with my supervisor - or my external who chose her. Guidance and tips very welcome please - I don't want to offend or alienate anyone but I really think I need to make the change.