As a married man of 25 years I wonder if you can look at your husband with more compassion. You describe him in very negative terms and yourself in more positive. What are the positive sides to his slow approach to tasks..how can you help him get things done how can he help you have more fun what new things could you find to do together as a family. What projects can you help him finish? My daughter has helped my wife and I clean up our home,she’s 21,and is doing so in a way we cant or haven’t been able to for years,that is in a organized clear steps and within a timetable. It’s very freeing to cart off boxes to the goodwill etc. Try to reframe your relationship by seeking positive feedback on both sides…start small…I’m working on that in my marriage all the time..when I make myself make the effort.