This will be short and to the point.
Sometimes when you are learning something, you reach a point when you are constrained by raw power. Think physics and particle accelerators.
You compensate by being better at interpreting subtle evidence. Even with low power, you can learn most of anything if you have good models, and do the hard work of extracting a weak signal from noise.
However if you find yourself in this situation, increasing power should be your first priority. If you hit the power jackpot, you'll experience some very rapid progress, because your sophistication is way ahead of your previous level of power. You are ready to wield more of it.