Similar thing happened to me, albeit like 6 or so years ago. I was very young and had been "in the space" for a couple years. The concept of "decentralization" in general appealed to me as someone frustrated with the abuses of centralized power. I liked the idea of a transparent ledger and wanted to apply it to non-profit initiatives. I even spoke about this at the European Central Bank as a 20 year old (got there vi…
The only useful application of crypto/blockchain tech I've ever seen simply takes advantage of the transparent ledger as a way of tracking receipts.
One of the perfect applications is in shipping and logistics where receipt validation, transparency, and certification, is an essential part of the business.