A little while ago I won a Gold Key and a few Silver Keys for a novel and a few short stories I submitted to the Scholastic Art and Writing Awards. I didn’t get paid and the stories in question weren't published, but is it worth mentioning this in a query? I might be grasping at straws here, but I guess every little bit counts.
I understand that overwhelming desire to put something in the pub credits paragraph, particularly when you're just starting out.
I had the same problem when I'd sold zero books. And then only one book, and then only two books.
This is the kind of award that you can certainly mention if you feel the need to.
The awards you do NOT want to mention are those crazy, semi-phony awards that cost $75 to enter per title and have seven hundred categories, and first, second and third place. In other words, where everyone "wins".
And semi-finalist in the Amazon breakout novel contest was a big one for awhile. There were 200+ "winners' there.
The contests to mention are ones that you've actually won, have a degree of independent judging, and those with some actual value.
Hopefully you'd never enter any other kind of contest, but writers get hornswoggled into those things left and "write".