Obsidian for note taking
Obsidian for Beginners
https://youtube.com/playlist?list=PL3NaIVgSlAVLHty1-NuvPa9V0b0UwbzBd&si=mQribLdtYbpTM3_m
The ultimate beginner's guide for Obsidian. Clear, fast, simple. Get in, get out, get working.
This video (there's a series of them but the first one is sufficient at first) was what helped me get started with obsidian.
I find it extremely useful for writing everything down and being able to easily access my thoughts and important information.
I also use the calendar plug in and daily notes. Every day I open a daily note and use it for my to do lists and to note down anything important that happened that day.