> Whatever happens in life, I give myself a cap of 48 hours to get over it—this includes being sad, grieving, being unproductive, etc.
This is, to me, insane. Grief, sadness, anger, etc are not truly within our conscious control. I can't say that I have a study in hand which shows this or anything, but in my own personal experience with them it definitely doesn't seem like a "choice" to feel something. Feeling and actions have mutual influence, but neither fully determines the other. Choosing to be "over it", IMO, is simply denial masquerading as self-control.
To be clear: recognizing the persistence of, say, grief is not at all the same as letting yourself be consumed by it. I think it's appropriate and healthy to set boundaries on the amount of time that you will give energy and attention to an emotion like grief, and making the decision to "move on" is absolutely possible. But to me this must take the form of "I am still feeling X, but choosing not to let my actions be dominated by it", or at the very least the simple "I am still feeling X and that's okay". In my experience people who you instead say "I am no longer allowing myself to feel X" eventually [ex|im]plode. A quote I heard a long time ago that really resonated with me is (something like) "you are not a machine, you are a garden"; my mind doesn't take orders and trying to force it to adopt one state or another will either result in frustration (bad) or deluding myself about my internal emotional state (worse). All I can productively do is provide my mind with the circumstances it needs to develop in a healthy way, and then be patient. In the meantime I can put my best effort into taking healthy and self-caring actions (doesn't have to be sleeping all day, could be taking a class or learning a new skill), without punishing myself for failing these.