You have to go back to being like a two year old and keep asking yourself "Why?" until you end up at either the universe or atoms, because you inevitably will. It's important to remember how insignificant we are. Just specks riding a bigger speck around a little spark in the middle of nowhere. Nothing that happens really matters and it will all be forgotten - not in thousands but in hundreds of years. Do you have food and a roof? Celebrate! Do you have access to medical care?! OMG, celebrate harder. If we let little details like careers get us down, all those cushy things can be taken away and you might find yourself drying out in the desert like a jellyfish on the sand, dead for nothing but discontent.
Also, I recommend meditation, the kind that results in traumatic emotional detachment. And lots of it. It makes life live-able, because you won't want anything.
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.