I hear ya. I love my job and I'm not anywhere near retirement (will be 40 next year) but sometimes I feel old as the hills and ready to quit... Lately I've been absolutely SLAMMED at work so I haven't done any sewing in over a month. Too tired to do anything on week days, and weekends are spent doing all the necessary stuff I didn't do all week long.
I look forward to retiring, very very much. I might even work part-time to keep myself busy and for some pocket money, but I want to get myself into a position where I have the option of not working at all. I sock a lot of money away in my retirement fund towards that goal - I've been saving for my retirement since I was 19 years old. Not always a lot, but always something, every single paycheck. I'm hoping I can retire at age 55 or 60....so just 15-20 more years to go, if I play my cards right. LOL