That sucks....

Maybe you shouldn't have been using that cheap Chinese Epoxy

I usually find in a case like that, that the best thing to do may be to just walk away from it for a while. When you come back to it in a less depressed state of mind, you often see it only as a "problem" rather than as the "total disaster" that it looks like at first, and sometimes you then find ways of dealing with it.

Can the warped sides be de-warped ? e.g. maybe by moistening them with a water & ammonia mix, then clamp them to a flat surface for several days to dry ? Or maybe the fuz formers and top & base can provide enough support to counter the sides' attempt to bend in ways you don't want ?

Don't let it get to you ... it seems like we need to have low moments like that, in order to make the good moments feel even better by contrast !

Gordon