I was in the same position as you when I started my law degree!

My solution was:

- Take notes on paper

- Scan with Genius Scan (free) or similar

- Upload to Microsoft Document Intelligence on Azure to get character recognition and a PDF output (standard OCR sucks for handwriting; also free for up to like 50 docs a month)

- Tidy up the text and store in Mediawiki long-term (you can also upload a copy of the OCR enabled PDF) (FOSS)

- File paper notes

- Throw paper notes once module is complete