My instinctive reply is - go back to work and fix Loom because it sucks. OTOH, it's super impressive that they managed to make such a success from a pretty bad realisation of a reasonable product idea. The founders clearly did a great job in terms of marketing/sales and selling the company. That is no mean feat.

My next suggestion would be to go give some of the money away to individuals who need it. There are many many homeless people in the US if you need somewhere to start.

Beyond that, where are your friends and family? Might need to address that. Therapy will help. The NPC comment is disturbing, no well-adjusted person would write that.