I am worried I won't be able to give him my everything, and the wonderful years of commitment and time spent with him will one day only be memories: Becoming a doctor is my dream, and I have worked incredibly hard thus far.
This is my first and last attempt to write on a forum for relationship advice.
Unfortunately, I can't answer the questions about marrying him etc.
I don't care about the money, I have suggested him to downsize if needed for him to work less. Yes, because that is generally what is best.