Corona period and online education has created different situation for students. Students are missing their social circle, play, fun, gathering etc. Online classes and exam pressure is creating anxiety. Change in food habits (junk food) is also contributing to anger and disturbed sleep. Did you gain weight during last 8 - 9 months ?
Next Steps
Plan your day. Start with some exercise, Eat non spicy and home made food, Relax in between - see exactly where you stand on your exam preparation. Talk with your parents and take them in confidence, discuss freely.
Health Tips
Can consult a counselor psychologist in case of any further help (may be with family)