Ask HN: How to stop anxiety from too many choices?

The obvious answer here is to reduce choices. However the past few months I am struggling hugely with anxiety which is rendering me incapable on some days to make any real progress on my goals; startup, learning & side projects.

When the pandemic began, and we lost our clients I have found myself in a constant state of ideation and future thinking, but once I start one of these (semi-pivots) I get worried that there is a better idea and go back to the drawing board.

How does one stop this process?