quarter life crisis

My friend Kat has been talking about a quarter life crisis for at least the past 3 years. I always kind of looked at her with this strange "Whatever you say" look. BUt now it is coming back to haunt me. I am feeling like hot friggin crap these days. Too much responsibility not enough youthfulness. I just don't know how to deal. My responsibilities/commitments to other things outweigh my own and that is a horrible way to feel at 21. I might be ignorant...I ain't got no kids, nah mean! I don't think I should have to think so freaking hard about everything. Somehow I know that this is my way of trying to slide into irresponsibility but I feel like I am due some. I am a good kid. I do what I'm sposed to. I am self sufficient, moderately independent and have been for 4 years, and I am graduating this MAY. I think I deserve to do the dumb things now. Somehow I have to find a way to not be nuts!