That is how I roll too, as soon as the frustration starts, put it away.

I typically pick up another WIP, which is why I usually have more than 5 kits in progress at once.

But I have found that trying to push through (while frustrated) only makes the problem worse.

There are times when pushing through is good, that is to get over disinterest or even laziness. But pushing against frustration, for me, ends up with ruined bit.