If you are trying to teach yourself programming and never read any documentation, you're going to make a mess of it.

If you're trying to work out at the gym on your without reading anythi g about it first, you'll probably make a mess of it.

There's a lot of info out there about how to train at the gym, as well as how to write code. People who know how to read can certainly get a long way by reading a few simple tutorials.