There is no such think as balance or work life balance. Sorry to break it to you, but that is the truth. There are only 24 hours in a day, so if you want to relieve stress in your life you have to prioritize your life and figure out what in life is most important to you. If you have a goal to get healthier or lose weight, that has to go on your list as high priority.
You may want to keep a list of how you spend your time for a few days to a week. You will most likely be surprised by the results. It is human nature to make everything top priority. When you look at your tasks from the week, you will probably find some time wasted. That’s okay. Take note of it and devise a plan to focus on your high priority items first. Make sure relaxation/fun time is on your priority list. In order to manage stress we need to spend time with family and friends, take time out to enjoy a hobby, or just plain do whatevfer we want to do.
Make sure you are spending some time doing things you enjoy. This will help keep the stress at bay and keep you healthy.