Micro-consulting sounds like hell. Sales are a huge drag on any expert trying to capitalise. By the very nature of their business they need fewer but larger deals.
Since the data won't change frequently it might be worth trying to load it into ClickHouse. I've had needle-in-haystack searches on multi-million row tables speed up by 2 orders of magnitude over PG.
Video and music production, game development, stock trading, book writing. You've got every prerequisit by the time you hit 30, you can do anything at a global level.