OTHER POSSIBLE INTERPRETATIONS (not necessarily likely, just possible) I'VE THOUGHT ABOUT

Where death is something you can fuck up the broken heart rolls three blank dice.

As you are probably aware a common French idiom is "le petit mort," literally "the little death," really referring to "orgasm." This is a common idiom and a generally known euphemism, both the French phrase and the English word death = sex/orgasm, from what I understand. So I think there's the potential that "death" may also be referring to or evoking sex, in which case yes - it's easy to sex wrongly, or at least, sub-par-ly. Keeping the context of the poem pretty strictly as a cast-off lover and broken heart, it is worth considering if this is intended by the author and at least invoked by this phrase if not the totality of what it refers to.

I would say less that the poem is anticlimactic but that it is anti-idyllic. I do think that goes better with the idea of a disillusioned/spurned lover who is realizing the seemingly best thing(s) (love, relationship, partner, etc) were not/are no longer as they were/seemed.

Psychic - not too many syllables away from psychiatrist.

Continuing to interpret the poem rather more rigidly I feel like

Everything blushes but my ego now dumbed down for "sleep"

could be referring to an acquiescence or acceptance born of defeat or lack of energy. That is what I get from "now dumbed down," that there is a loss of energy and a general either begrudging acceptance of sleep or even perhaps welcoming sleep as respite from pain/disappointment. I could see myself after a break-up just trying to wear myself down into unconsciousness for a while to cope. But I agree, the blushing remains ambiguous, unless we are talking about a cheating lover perhaps (which could also be how one could fail at death/sex).

The hermits I agree are a departure and take the poem from a very close lens to a far one. However, perhaps the idea there is that of anticipating the impossible/ridiculous/never-gonna-happen, which may be how the narrator feels hoping their lover will return.

Some more thoughts. I agree, I interpret the angel "willing to watch you shake" as uplifting in a way, not deliberately but absolutely reminiscent of Taylor Swift, and interpret "shake" to mean "dancing" or celebration of some kind. That even in imperfection there can be joy. Even in the diminution of an ideal you can retain some carefree and happiness.