How to keep track of all the meeting and daily events

Hello, in the last 6 months, I’ve been keeping track of most events in my work-life, each one-to-one, each recuring meeting, etetera. I’ve done this with a software called Obsidian.

Here is the graph of my notes. I need to review the lonely ones as nothing should be unconnected.

Let me know in the comments if a video explaining how I do it would help.