Hey Joe,
I agree with what a few of the others have hinted at: Use a camera that is an extension of you rather than the other way around. I recommend renting an Olympus OMD 1 and a few lenses. I think you'll find that using a small mirroless camera will loosen you up, see things differently, and ultimately help you become a better storyteller. Lifestyle photography is about showing/telling stories. ... Stay with it and eventually everything will line up.
When I ran my photo business, I had three areas of competency. That really helped keep the sales pipeline flowing. Now that I'm retired, I'm shooting "fine art" photos. I had no idea how much time, effort, and patience it was going to take (a few years of shooting three or four times a week) to get over the hump. ... And I also know that there are going to be a lot of roadblocks ahead. It never ends...