High school is a scary and exhilarating new step! I know you’re stressed so I’m just going to say remember that high school is still just a school same as elementary was, you’re smart enough to make it through! Although teachers and everyone take things seriously, this is the time that you’re allowed to be a confused and terrible person with less consequences. Take some risks even if things might not work out, both socially and in academics. Like everyone says, class is easier if you the homework a bit earlier, but I still haven’t mastered that skill so no tips from me. If homework is really challenging you talk to your teachers about it, its not an inherent flaw in yourself or difficult design on purpose so they can give you more insight than stressing a lone can do.
High school is only four years, but it is almost as defining and special as people say. Lot of new people and freedoms and growth while all your friends are constantly with you all day. That said you can’t really ruin or waste your high school experience being honest so don’t be too afraid to try new things or making mistakes. Even the confident people are full of hot air in high school, despite how certain they sound so don’t be afraid to speak up or question them.
When you get down to it, trust your own judgement more than your peers and listen to your own thoughts. Really just try new things sometimes, talk to people and you’ll be fine. I’m satisfied with the amount of daring, dumb things I did but wish I’d been more out there day to day with people. Looking back, I never let myself be in unsafe situations so being cautious was a not worth being embarrassed about because many people did end up making serious mistakes. My advice is just to keep an open mind but know that others don’t know as much as they think so don’t let them scare you. Also, don’t talk so much in class.