> I feel so lost right now.

What makes you lost, but in a positive sense? Playing or listening music, books? Riding bicycle, running? Hiking? Physical activities tend to help.

Scale down these 60-70 hours per week, that's ridiculous. There's no life/work balance there. You're running a SAAS, in theory it just keep bringing cash. I know it's not like that but still, see how long the business can coast with your minimal involvement. Use that to your advantage. Who says that business has to always grow? Even if it slows down but you end up happier that's a net positive.