I kind of see your point, but only in the context of working on time-sensitive task which others rely upon. But if it is hobby/educational project, what is wrong doing things by yourself? And resort to decomposing existing solution if you can't figure out why yours is not working?
There's nothing better for understanding something rather than trying to do that "something" from scratch yourself.
There's nothing better for understanding something rather than trying to do that "something" from scratch yourself.