Write down stuff in a paper or in something like Google Keep. Something like this: 1. Main Topic - Sub-Topic 1 - Details - Sub-Topic 2 2. Main To

Write down stuff in a paper or in something like Google Keep. Something like this: 1. Main Topic - Sub-Topic 1 - Details - Sub-Topic 2 2. Main Topic 2 Outlining is pretty powerful and check-out Workflowy and Roam Research as well