I've had (basically) my entire life organised in Notion since I created an account at 15. It's my favourite software to use because of how intentional the design is, and how you can build really specific templates from such simple components.

A friend asked me to share a template I made for grocery shopping and meal planning in college, so I put it on the Notion marketplace and it ended up getting 30K+ downloads. I've made some more templates since.