Most challenges faced in the school are caused by inferiority characters. Some are caused by student themselves while some are common and every student or teacher must be ready for them.
The very fortunate fact about all the challenges in school is you can overcome them. Here are they...
Nervousness among pears. Most students become nervous when given group work because of lack of familiarity. In life we tend to be anxious when we're not used to doing things and can you imagine what would happen to a shy student?
Face your challenges in the eye. A student is a learner. Be eager to increase your social skills by participating in every possible task. Do not hide behind the crowd, it harms.
Show off your skills and knowledge. This is why you are a student.
Academic challenges:
You surely must face great challenges academically especially when you lack proper foundation. The only way out here is to love to learn. Arithmetic might seem like an enemy but love and stick to it.
Let a friend guide. It doesn't matter if you'll have a student-teacher, you only want to overcome challenges in school academics.
Aggressiveness and social pressure in school.
Do not fight for respect. Do not surround yourself with aggressive friends. Avoid argument which might cause overreaction leading to social dispute and hate.
Be yourself and consider living a serene life despite the pull. Realize how different your level of understanding might be. Intelligence is a gift but it's manifestation depends on how you handle it. If you want to overcome challenges in school, you really have to face it firmly.