I think you ought to consider whether you should take notes at all. Notetaking is great for remembering actions that you have comitted to doing, or if you need to spread information to people who didn't participate in a meeting. Managers need to do a lot of notetaking.

However, taking notes seriously hinder your ability to engage with the material and build true understanding as you are listening, which would have helped you remember the material right away. If you are in school or are an individual contributor in a company I think you ought to stop taking notes all together.

If you need notes for future practice I would advice you to write them after the meeting/lecture. Actively recalling things from memory is the best form practice.