Don’t dwell on past fails but instead see them as moments for improvement and a time to reflect. Whenever I fail something I reflect on what I could’ve done better. In my mind I can’t be upset about not getting good scores if I know I didn’t try hard enough. If you know you’ve done as much as you could in terms of revision and preparation then honestly don’t dwell on it because you’re doing your best ! Also, never compare your scores to others, be proud of what you’ve achieved. Not everyone has the same standard of what’s a good/bad score. People may look at your scores and wish they had it. Be proud of your work !!