Even though you're a full-time bride, don't give up on all of your extracurricular activities or that scrapbooking hobby you love so much. Try your best to stay organized, and make lists of responsibilities so you can stay on top of deadlines and goals. Focus on one interest at a time. Train for a 5K road race that's coming up, or learn a few phrases of the country's language where you'll be honeymooning. If you're really stressed out, splurge on a massage or curl up with a good book. If shopping relaxes you, hit the mall!
No matter what you do to alleviate stress, remember to enjoy your engagement -- it's too special of a time to waste by letting your worries get the best of you.