Hard Work All Of It
There’s three types of hard work.
Physically hard because you have to lift and carry and sweat.
Processed hard work because it is the same boring treadmill over-and-over and you never had a hand in designing the process.
Possibility of failure hard work because you might not succeed.
They are all equally hard, in different ways, but the last one is more to do with our mindset than our bodies.