Your current workflow is actually quite good for information retention and organisation. You have the benefit of manually entering your notes and organising the

Your current workflow is actually quite good for information retention and organisation. You have the benefit of manually entering your notes and organising them in physical space in a notebook (remember to doodle in the margins for even better retention!). Then you revisit them later to optimise them for indexing and search in a digital folder. Moving data from short-term to long-term storage in the brain is hard work and there are few shortcuts. The real question is whether it would be sufficient to outsource storing and search to a digital solution rather than doing the work "in-house" in your head.