Take it easy to get out of the rut

The chain of events will run something like this: First, you give up on beating yourself up and hustling and unnecessary early mornings and cold showers and all the rest of it. Thus, you signal to yourself that you care for yourself. You loosen up. This reduces the extent of the Misery Taxation (I.e. the boozing and pizza demolishing curbs a little). Health improves.

And then one day, while lying in the park & looking at the clouds, you have a creative idea. You pursue it out of genuine curiosity. And thats how you break the misery chain.