When you love what you do your work becomes part of your life because it gives you joy or challenges you to grow to become better at what you do. This will feed into everything that you do. Are there moments that are hard and stressful? YES! in fact the last 6 months for me, have been the most challenging of my career year to date, but I have learned to take growth with those challenges, share those challenges with my family and teach my children by example that you can have moments in your career that are hard, but it shouldn't mean that you have loss of happiness or balance. 
Work balance and life balance are not two separate weights on the scale, they should be viewed as one whole. They feed into each other. join me in discussing what that looks like in real life and not in what superficial society says it should look like.