The toughest part of investing isn’t the math: It is the rewiring.
Your investing judgment is influenced by a lifetime of experience with money. People who spend too freely have a difficult time saving, while those who value safety find it terrifying to take risks. I have been a frugal saver throughout my life, and I still find it hard to spend on things I enjoy.
Changing your mindset takes time. Don’t blame yourself for not overcoming 20 years of programming in a week. Appreciate the small wins, take it easy, and you will get there.