The phrase "life hack" has been used quite liberally in the past few years.
Most of these "life hacks" are merely good, common sense tips for how to do something better, get or stay motivated, or learn something that might be useful.
One of the hardest "life hacks" to learn is that there is no "life hack". There are ways to increase productivity, get organized, stay motivated, and achieve goals. But there is no way to simply go around the hard work, sweat, and blood that is required to achieve most things of value.