When you are working on something new, by definition you are not competent to do it.
You don't know enough, is not the right time and you don't have the resources to do it. The trick here is that you don't know what constraints are in the way and their path-dependance with your goal. And while these limitations are, on occasion, important, they are also external to this goal you are pursuing.
And externality is the enemy of progress in this stage. You want to identify the constraints that are internal to pursuing the goal and actually pursuing it.
<blockquote class="twitter-tweet"><p lang="en" dir="ltr">Anything worth doing is worth doing wrong.<br><br>Only way to start.</p>— Conor White-Sullivan (@Conaw) <a href="https://twitter.com/Conaw/status/1318712092132745216?ref_src=twsrc%5Etfw">October 21, 2020</a></blockquote><script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>