Her follow-up with stats on her investments: https://substack.com/@halletecco/note/c-113855500
tl;dr: returned $0.31 on every dollar invested, albeit with a bunch of ongoing investments that may still pay off (but are unlikely to get her even on the investments let alone a profit)
Do US angels get tax breaks on these investments? The floor in the UK is basically £0.70 on the pound.
the blog post could have been a lot shorter: "I quit angel investing because I'm not very good at it."