I've had the opposite mental trend. In my teenage years and early 20s my mental abilities took a dive off a cliff. Especially during my teenage years, due to ot

I've had the opposite mental trend. In my teenage years and early 20s my mental abilities took a dive off a cliff. Especially during my teenage years, due to other factors as well as frequently being ill. Now that I'm in my early-30s I feel far more creative and generally have the ability to learn at my own time and pace, as opposed to having to do so in a classroom environment. I think the problem is a lot of people tend to confuse a decline in mental ability with things like work-related burnout, a build-up of invisible stress or other compounding life factors. Rather than assuming that it's tied to age, I think it's better to try and assess other factors that you might be ignoring or simply haven't thought of in a while.