There will be NEW teachers, NEW classmates, NEW rules, and a NEW environment.
You will have to change classes, eat in a different type of cafeteria, and share a locker with a buddy.
During lunch you ARE allowed to use your electronic device.
Be sure to use your device in an appropriate manner. Do not take pictures of other students. Do not take selfies. Do not text mom, dad, grandma, or grandpa if you want to leave school.
If you are not feeling well, you must go to the nurse. If the nurse determines that you are well enough to stay at school, then you stay at school. You can only go home, if you are not well, through the nurse's office.
Learn your schedule and learn your teacher's names. This will be very intimidating, but you can do it.
The courses will be harder and there is usually more homework. You will also be expected to do a lot of work on your own.
Treat school as your work place. The long-term financial benefit will happen when you enter the work force.