First, you can't learn anything, you don't have the time, the energy, nor the talent. Second, it's inefficient. You should leverage humanity experience. Third

First, you can't learn anything, you don't have the time, the energy, nor the talent. Second, it's inefficient. You should leverage humanity experience. Third, you can learn a lot faster if you start by repeating something without understanding it. Even maths. So yes, understanding is useful, but doing without understanding is not bad. It's just a tool.