It was once said by the head of an influential patenting body: There will be no new discoveries and inventions, we have reached the pinnacle of scientific knowledge.
That was around 1900.
My point being there is always onwards, upwards and better, it may not yet be imaginable or apparent but its closer than you think. We each have our own points to work on... I come from an engineering background, and all of my creative energies have been directed that way, I'm having a great degree of trouble in being artistic rather than functional in my efforts. (It's all fair and well producing pin sharp pictures of nothing, but if your only picture of artistic merit is so out of focus it can only go to 6*4 then you still have a problem)