I've read about people who work from home, who get up every morning, dress for "work", and walk around the block to get to "work." That walk in the morning, or

I've read about people who work from home, who get up every morning, dress for "work", and walk around the block to get to "work." That walk in the morning, or two or three blocks, would go a long way to keeping you healthy. If you've been spending two years in front of your computer working on your SaaS, then you've missed some crucial benefit for your SaaS. You need to spend time not thinking about your project, so your brain can sort through things on its own. You'll get more and better ideas by not constantly thinking about more and better ideas.