You're as young as you think you are. I'm not ashamed to say that I'm 28, an unmarried, part-time student, full-time lab rat. Most of my peers are either: a) in grad school getting their PhD b) working some high flying job, and I'm not just talking about the air steward/ess c) married with/out kids d) being responsible, practical adults Me, I'm in a job that mostly makes …