Thats pretty much my case.
Although you need to read a lot (internet rules on this one) and be sceptical and critical of all things written.
Some fitting philosophies start to make sense only when you really understand the topic. One example being drop or bike size for large riders.

Of course if something hurts (lower back, knees) it may be hard to find the real cause of the pain since so many things affect it. It is an art, as much as it a science.