Change Your Spiritual Self
It is doubtful much will change about your life unless you change spiritually. This doesn't mean you have to become an ascetic or track down a spiritual guru, but it does mean investigating the larger part of yourself which you possibly neglected as you have worked on building a career and family. All of us need spiritual roots. Decipher what that means for you and do some serious work on it.
Where do you start? Pray. A lot. Then talk to your minister or another trusted person who may help you along your journey. Be open, ask what he or she has learned and what insights that they have gained along the way. Then jot down some spiritual goals for yourself and start to work!