Rob-
School never goes away. Even when your all done and graduating, the decisions you made during your school years will be with you everyday.
It's just something we all have to live with and go through. Trust me, it doesn't get easier, but if you learn to just accept that school is school and stop hating and fighting it so much..it will get easier.
Develop a system..don't put off doing your homework (I'm typing this to you because im avoiding doing my chem homework) and most importantly DO NOT BE AFRAID TO ASK FOR HELP. Everyone has trouble with somethings sometimes and pretending like you are okay in the subject never helps anyone. Take advantage of tutoring and school will go by much quicker for you..plus you will be much more confident.
You know I will always help you with your work..don't be afraid to ask me to tutor you
-Jess