"Do what you love" comes with caveats BUT ... you didn't do what you love. You said what you love is building a product. However, what you chose to do is be an

"Do what you love" comes with caveats BUT ... you didn't do what you love. You said what you love is building a product. However, what you chose to do is be an entrepreneur. These are different things. You took on a combination of building a product and building a business. If you had just built a product, without the necessity of having to make it a business, then I guess you would be much happier.