answer:On the one hand you can detail everything you’ve done and put it on resumes and on college applications. ] On the other hand, no, they don’t appear to appreciate you, and will continue using you. So knowing the projected outcome, are you willing to put up with the BS to look good on college and job resumes? If you stay, before you start the school year, make the teacher put in writing (and have them sign it) all the stuff you’ve done and will do this coming year so you have evidence to support your resumes in the future. I suggest you think twice if you’re going to all that work and not even get acknowledged for it. And of course, assuming that next year goes like the last one, consider the personal cost of the rejection you’ll feel if you stay on. Only you can answer these questions.