To actually answer your question about "how to stay on top of your game": Don't try to keep up with all the new shiny things coming around. Focus on a few thing

To actually answer your question about "how to stay on top of your game": Don't try to keep up with all the new shiny things coming around. Focus on a few things you want to learn and learn them deeply. This will make it easier to adapt new things later in case you MUST learn something.