Your first 10 years in this industry are mainly learning standards, patterns, and foundational information. After that ten years, everything just clicks. It's like one day the fabric that underpins most of your day to day becomes apparent.
With that said, in my 20s I crashed through many of these subjects. I did well enough, and now maybe I'm a bit young for my level, but there's not a ton to show for that. My advice, take your time and treat learning like a marathon. The big salaries and opportunities will always be there, and the stronger the relationship with that foundational fabric the more in grasp those opportunities will continue to be.
With that said, in my 20s I crashed through many of these subjects. I did well enough, and now maybe I'm a bit young for my level, but there's not a ton to show for that. My advice, take your time and treat learning like a marathon. The big salaries and opportunities will always be there, and the stronger the relationship with that foundational fabric the more in grasp those opportunities will continue to be.