Before you talk to your parents again about homeschooling, go online to Homeschool.com and The Teaching Home to find more homeschooling information. Your parents may not know that it is becoming easier to homeschool. First of all, there are books and Internet sites on how to homeschool. Also, many families have joined homeschool cooperatives that let parents take turns teaching different subjects. Plus, many public schools now have independent study programs and even let students enroll part time for courses.
Please be aware that homeschooling is definitely not the only solution to your problems. A chat with a sympathetic school counselor could really turn things around. Perhaps, all you need are different classes or some special academic help. You should also explore with the counselor the possibility of attending an alternative school or participating in a work-study program. Such creative programs are just right for many students who are having problems in traditional high school programs.