I feel the answer is in there. Live more in the now and experience the calmness, even though you may be just as busy as ever. Busyness is just a label you put on your activities yourself. I'm sure my son does not understand being busy and if he would he would label it as a positive feeling. Busyness is a feeling caused by thinking of all the things you still have to do. Some people feel it when they have to do shopping and cook on 1 day, some people seem to never feel it even though they shop, cook, visit friends, work and do sports on 1 day. It's very subjective and there are techniques (mindfulness?) to feel it less than you do now.