a bit not good - When you mess up something you were super proud of, and it’s

When you mess up something you were super proud of, and it’s like your ego got run over by a truck.

I failed my math test, and I was a bit not good because I studied for 10 hours.

My friend tried to cook a pizza and it looked like a fire happened inside the oven. He was a bit not good.

My brother lost his job, and he was a bit not good because he had a tattoo that said 'Boss'.