Title: Any suggestions&#x2F; frameworks on how to learn specific skill, retain the knowledge and be able to share it(in for ex. written form)<p>I usually jump in straight away and start learning &quot;on the job&quot; but I realised that I forget too much and i do not have any notes to refer to later on.<p>Examples of specific skill: 
- How to write a good cold email 
- how to learn some snowboarding trick 
- how to store your bitcoin safely 
etc.
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