"Know thyself" is one of the tenants of old, and people naturally think they know themselves well. (I used to think the same way too... but it's actually an illusion - a self deceit that we have all built in.)
Start by digging into your own uneasiness. Where does it come from? What triggers it? You'll find some personal thing, most likely from childhood, tucked away in the recesses of your psyche that drives you. Meditation and self honesty are key here.
You can also start by looking at other things, like anger & see how something like a small irritation early in the day can lead to more irritation later on, which can lead to a blow up.
As you dig into your own psyche, you'll hopefully uncover how to love your wife, kids and place in life even more. It will then allow you to dig into yourself more, with increasing levels of gratitude, compassion and love as a result. It's pretty cool.
Pay attention to your nightly dreams also, as they often reflect your day time psyche and can also influence how your upcoming day will be.
Maybe this is what you're looking for?