Totally. I’m glad I started to learn 3 skills every month back in October 2017. I have indeed seen more success in all those areas since then.
The problem with books and courses is that they’re mostly passive learning and most people don’t go the extra mile and put knowledge to action, where the real learning happens. When I learned that you only retain 5% of what you read, I realized reading really isn’t that important to learning.
The reasons Gates, Musk and Jobs learn like they do is because they read effectively. Maarten van Doorn has written the best ever article on how to do it: https://medium.com/@maartenvandoorn/the-complete-guide-to-effective-reading-fc1835937757
That being said and as you said, learning impacts your success directly.