In income terms, diversify away from a single source by learning new skills, training up in areas you're a bit rusty in, learning totally new ones.
In savings or investments: diversify where you put them, spread them around so you're not dependent on any one scenario.
In eating: eat more interesting and cheaper things. Become vegetarian, if you aren't already.
In exercise: drop any gym memberships, use things like body weight to train. Run one day, do yoga the next.
In your media consumption: diversify in sources but don't take this as a cue to read more. Read less, much less, but read better. Ignore social media, it's all b&&&&&t. Find one or two sources of media that are reasonably middle line, and read around a topic in a diverse way. Don't get sucked in to anything, least of all the disaster scenario stuff you'll find.
Last but most important: spend all the time you possibly can with your family. Make them your focus, not your income and "future". Be in the now as much as you possibly can. You'll only have this time with your (small) kids for a very, very short period. They'll be flying off soon. Be there for them.
Best of luck.