Good Question - How to start developing critical thinking?

• You are but an impression, and not at all what you seem to be
• Things in our control are opinion, pursuit, desire, aversion, and, in a word, whatever are our own actions. 
• Things not in our control are body, property, reputation, command, and, in one word, whatever are not our own actions
• It means to examine something without any consideration where the conclusions lead.

Ref - Link

35+ Mental Model Examples and Their Explanations

My key list

• “What if there is a better way?” 
• Avoid perfectionism.
• Identify 20% of the activities that give you 80% of the results.
• The 10-10-10 Rule is asking how you’ll feel about a decision in 10 minutes, 10 months, and 10 years.

Keep Thinking!!!