I'm brand new to diving and I want to make my way to instructor. Sure, "technically" you can do it relatively quickly. But as others have said, the sport is fun, but it can also be deadly over very simple things if they aren't learned, practiced, and you have made them 2nd nature. Even I have enough common sense to realize that. As a DM, or even as just an OW certified diver, it's not only your own life that's on the line... it's others as well.
See if this makes sense to you, a fellow "guppy" in the world of scuba: My intention is to take my time, get the knowledge and more important, the experience before moving to the next step. My confindence in my own ability to do everything I need to is the prime goal, above all else.
Will there be opportunities available if you can't take advantage of this one? You bet. Don't worry about that. By "taking care of business", you'll actually be opening up more, even better opportunities for yourself, and you'll be an incredible asset to others who will learn from you.