For me, 'making time for myself' was just one more thing on a stressful to do list.
A little background: We are approaching the two year mark. We both work out of home and my girl has chronic health issues and didn't sleep consistently through until recently.

I have not found the transition to parenthood and the last two years easy. At all. I enjoyed her and I enjoyed our little family but I was completely overwhelmed and exhausted most of the time. My daughter didn't sleep, so that impacted everything, but I think I would have had a hard time either way. Just my personality. The daycare,work,daycare, home,dinner, bath, bed grind is tough and I definitely wilted under the drudge. Some people are organized and efficient and can get their life running smoothly again as soon as they recover from birth. Other people have enough time and/or money that they can take time for themselves almost as soon as LO is born. Neither of these were the case with me.
And, for me, having every book, magazine, and well meaning friend under the sun tell me that I needed to make time for myself, work out, eat well, see friends, etc,....um, it didn't really help. Making time for myself necessitated copious amounts of planning and scrambling. It was extra exhausting.
About 6 months ago I let myself off the hook for taking care of myself. My daughter was really ill and there was just no energy to put anywhere but to her and work.
And it was SO freeing to not try to fit in a workout, or coffee with a friend, or even something awesome like a massage. The daily grind was actually easier when I just focused on it and didn't feel guilty about not making time for myself. And my mood slowly improved. And parenting eventually got a little easier and the baby slept a little more and one day I actually FELT like doing something just for me, so I did. And it was great! Re-energizing instead of draining. I wish I had let myself off the hook sooner.

Just sharing in case any other mama has felt the same way. I know this won't apply to everyone and that many people thrive on 'making time for themselves' after baby come along. That just wasn't the case for me.