Quantum physics is a low-level approach to understanding the Universe, not you life. This is like saying that you studied the microprocessor executing a chess program in order to understand how chess is played. We don't live in the quantum world, we live under the reign of the classical laws of physics, which happens to be powered by quantum physics and not an alien supercomputer. Not that it matters what powers it until you need to understand the underlying platform, like you do for photosynthesis or microelectronics, both of which exposes quantum physics.