Hey, I'm right there with you. I think this industry is skewed young, but not as much as we might think. For me, the redeeming quality of my early 20's is that I matured dramatically. I'd encourage you to take a good, long (I mean months long) look at your motivations over the last decade and find a way to honor the part of you that was curious about agriculture & construction, and find a way to bring that part of you to life in the here and now. The word for releasing the tension between being and doing is "play".