Unfortunately not in your position, but know some people who are. They have found it rewarding to do angle investing. There are some really interesting start up

Unfortunately not in your position, but know some people who are. They have found it rewarding to do angle investing. There are some really interesting start ups out there and you can pick choose to find the ones that have PMF and are about to start to scale up - which is where you can probably add the most value from your own experience. Be aware that you will have to kiss a lot of frogs.