Of course, this assumes that the type of art you make doesn't require a long period of mastering the use of your tools. Kinesiology is an important part of this kind of education. If you have no control of your tools, you will be endlessly frustrated trying to get the results you want to get, and often the difference between efficient tool usage and inefficient is in fact so small that it can be quite difficult to figure out on one's own. Once you've been shown the right way to use a tool, it seems obvious instead of baffling.
There are clear similarities between learning to use tools and learning to play a musical instrument. Playing a brush, which is a tool for making art, is essentially no different than playing a guitar, which is just a tool for making music. You can learn either on your own, but without a good teacher, you may end up wasting a lot of time reinventing the wheel. Before one can make art or music, one must first become comfortable with the technique of using tools. It is perhaps a good idea to admit to oneself at the start that there are people who know better than you how to do it, and not be so focused on creativity.
In learning anything, my approach was to take a limited number of lessons from very experienced teachers and then go off on my own.