Can relate to what the OP is saying. Got my first decent job after school a year ago and I can't say that I'm exactly having fun. Sure I have money but there is no time to do much of anything. The thought of having a wife and kid to deal with on top of the shyt I'm dealing with right now would make me want to pop myself.
Good for you OP for still going to the gym despite your busy lifestyle. I gave it up because it was cutting into time I needed to vegetate and work on side projects and apply for jobs and stuff.
Cooking and doing dishes sucks as well. I can see why a lot of nikkas eat out despite the exorbitant expense.