Good for you! When I got my masters, I was working full time and found gradually that I was getting more and more tense. School/work, work/school, read, read, read text books and work proposals and reports, etc. Finally, I started getting up 15 minutes earlier (then a half hour) to do some "me" reading. What a difference! If you can do nothing else for yourself, visit this site to keep in touch!
You need to keep your sanity. Congratulations!