I went to music school. Yes, there's some truth to what you say. But teachers are there to help you sharpen your musical ability...and then you never see them again. It's the same in sharpening any skill; the training period is important, and often boring, but it lasts for only a while, and then you're free to use it or not.
I worked very hard at music theory, especially harmony and counterpoint. It transformed my ability, especially in the improvisation department, and I would never want to be without that knowledge. I found that it set me free, musically speaking.
If you're always striving for something, but always falling short of it for lack of knowledge or ability, then you end up burning yourself out with frustration.
I would say, apply yourself to music theory and keyboard exercises, even if just on your own. Don't overlook self-instruction; it's a mightily powerful option. Theory and keyboard skills won't hurt you or turn you into a cold musical scientist, like some musical Doctor Frankenstein (That reference was for you!). No, they will only expand your ability, and thus, increase your potential for finding satisfaction in your own work.