I think you're selling yourself short. In your 20s, you have a lot less mental baggage to deal with, on so many levels. This is a good thing when you need to wo

I think you're selling yourself short. In your 20s, you have a lot less mental baggage to deal with, on so many levels. This is a good thing when you need to work hard (which we all did when we were young :) ). Even if you can only work 6-7 hours a day now, you're most definitely spending that time a lot more efficiently than you did a decade ago. You don't need to keep more information in your head at the moment because you have decades of wisdom guiding your decisions.