How to learn business? Start a business.
How to learn sales? Start selling.
How to learn marketing? Start marketing.
How to learn writing? Start writing.
How to build SaaS? Start building.
How to learn design? Start designing.
How to learn coding? Start coding.
How to learn negotiation? Start negotiating.
How to learn investing? Start investing.
How to learn public speaking? Start speaking.
How to learn discipline? Be consistent.
How to learn creativity? Create daily.
How to learn networking? Talk to people.
How to learn leadership? Take responsibility.
How to learn communication? Speak simply.
How to learn patience? Focus on the process.
Starting is the most difficult part. The knowledge to learn anything is already available everywhere on the internet.
But nobody can force you to start — only you can do it out of your own interest.