How can a 14-year-old 10th grader recover from scoring below 60% on their 1st monthly exam to still qualify for a scholarship in Japan?

I am a 14-year-old student in the 10th grade, and my biggest dream is to get a scholarship to study in Japan. However, I just got the results for my very first monthly exam of the year, and my marks are below 60%.

I am worried that this bad start will ruin my chances of studying abroad. I want to work hard and fix this immediately. Could you please advise me on

Overcoming a bad start: How do scholarship boards in Japan view a student who started the year with low marks but improved later? Is a comeback respected?

Grade improvement: What are the fastest ways to change my study habits to jump from below 60% to the high grades needed for international scholarships?

Next steps: Besides raising my school marks, what else should I start doing at age 14 to make myself a strong candidate for Japan?