A few years back I used to store user data in the URL in conjunction with the goo.gl API (now deprecated), sort of a hack but worked great as a serverless key value storage, used it at fretflip.com to create shareable fretboard charts for guitar.

Most important, do not be too hard on your self, say nice things and encourage yourself.

Another digital commonplace book. https://en.m.wikipedia.org/wiki/Commonplace_book

https://www.fretflip.com | An interactive guitar fretboard tool to make shareable scale and chord charts. I'm using it as a common place for learning guitar and bass. Opened it up for others to store their own charts, some are using it for education. Still non-profit but glad to share.