Computer science is something different than software engineering, which is something different than coding. One can discuss about which one of these albeit partially overlapping skill sets is best for which job/task but this doesn't change that these are different things.
The problem with "teaching something yourself" is that you don't really know in advance what is important and how things are connected. If you knew already, you wouldn't have to learn it.
The problem with "teaching something yourself" is that you don't really know in advance what is important and how things are connected. If you knew already, you wouldn't have to learn it.