One of the things I've notice about being an idea-driven person, as I've reached my 40th year of life, is that the ideas don't stop coming. Time does not increase. Picking and choosing which ideas to focus on is an ongoing pain in the ass, but paramount.
Ideas are completely distracting. The desire to learn new things is distracting. The work of getting better at what you are already good at can be a grind, and requires discipline. The time to settle in to your "pure" art making, in order to get traction and break new ground for yourself does not come out of thin air.
Instead it's hammered out of place and broken off from the monolithic, time-sucking distraction of ideas. Time and ideas will try to eat you, if you don't eat them first. Being smarter requires work, and the discipline to be properly lazy. By lazy, I mean, don't do more than you have to. Because lazy and smart is the way to go.