I've become more pessimistic and cynical as I've gotten older, I suppose. I'm a lot less trusting and receptive towards other people than I used to be; I used to have some very close friends I'd speak to on a daily basis, whilst now I have, at best, a few casual acquaintances I might talk to once a month. I've become introverted to the point that I make other introverts look like extroverts by comparison.
Although this doesn't bother me as much as it used to - very little bothers me now, actually - and I'm generally a more relaxed person, despite having plenty of reasons to stress out. I've mostly learned how to control myself (although I do have occasional lapses) and not create additional problems for myself. I'd like to think I've gotten more witty too, but I doubt it; in this day and age, with the world in the state that it's in, it's difficult NOT to be satirical.