Ok, I am going to give you real advice now. And this is advice from someone who has been around. All this crap 12 year olds are telling you isnt going to work.
1) tell your parents you have given up all extra curiculiar activities to raise your grade, and keep your word (no tv, no going out, no skiing etc). Be honest and sincere and dont think you can come up with a one line argument that will get them to change their mind, it wont work.
2) talk to you school counselor and impress upon him how important skiing is, and that you may become so devastated by missing this entire year of skiing that it might adversely affect your whole high school carreer and cause you to act out. Ask for advice. Again, dont think you can just come up with something clever and he will solve everything for you, be honest.
3) also have a talk with your parents. Write out your scores, and tell them while you will do everything you can to improve them, them springing this on you at the last minute is a bit unfair. Do the math for them. Show them that if you improve your scores by say %20 over what you have been getting, your final grades will only be <gpa>
4) If your parent still dont care about how much harder you are trying, and only care about the bottom line, with so little time to improve, again, explain this to your counselor.
Or just call me a fag for telling you to try to talk to your parents as an adult, and letting a adult try to intervene. Act out through the rest of high school, doing even more drugs, and not ski a single day till your 18, barely graduate from high school and be a drug dealer the rest of your life
