Here's a Burning with passion, but also with a hint of disdain
You could've done this better, but no one expects greatness from you

Or perhaps this one: Just okay, given the circumstances
You should've asked for help, but no one expects you to be competent

And here's a classic: That was a good try, but it still sucks
You try hard, but still lose

More Backhanded Compliments

I'm sure you're not perfect, but that's what makes you interesting... sort of.
Don't mention it

But hey, at least you're not completely incompetent... yet.
Keep trying, I guess