What is the one thing you would do different if you could?

Since starting working on Outset (you can check out our coming soon page here: https://www.producthunt.com/products/outset-2), I have been learning at the speed of light. But the one thing I would do differently is this: launch as soon as possible with an MVP that is so minimal it just does one job. People told me this many times but it's easier said than done... What is your one thing?