I think https://charliefoundation.org/ is a good intro
I recently did another round of keto. It was very easy to search up starter diet plans, and recommendations (and plenty of folks will sell you their goods and services ) and just start doing it.
There will be an adjustment time at the start , look up keto flu. It's mostly just being grumpy.
I'll add, Listen to stand up comedy or a funny podcast while driving. Your brain will eventually associate annoyance with humor, and everything irritating becomes a chance to make a joke. Made a difference for me after years of sitting in traffic.