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If you would prefer learning with the assistance of another human and not just from computer screen, look into a tutoring program. Talk to your teacher or counselor to find out if a program exists in your area. Most programs charge fees for tutoring, while some programs may offer volunteer tutors. Don't be ashamed of needing help in a subject (or subjects for that matter), because we have all struggled a time or two to make the grade.
You can even find tutors online at sites such as Tutors Teach. Searching for a tutor on this site is free. Here's another great online resource on MSN Encarta that will help you find a tutor for your homework.