Have you been helping your daughter because she has real problems doing the work, or has it simply become a habit? If it's because she has problems, get help to improve her skills. Otherwise, gradually wean her from your assistance.
You need to help your daughter gain confidence in her ability to work alone. Don't sit beside her watching everything she does. Instead, help her get started. Discuss what assignments she has and which one she will tackle first. Starting with an easy one could be a confidence-builder.
Have your daughter read or tell you the directions for the first assignment and the steps she'll take to do it. Then watch her begin the assignment. If she has problems, help her get started by rereading directions and studying examples. Once she understands what she is doing, expect her to complete the work on her own. Let your daughter know that you will be willing to check over her work when it's done as well as help her get started on her other assignments, if necessary.
To better organize doing homework, help your daughter establish a set time to do it every evening. Teach her to write down daily assignments in an assignment pad and long-term assignments on a calendar and to check them in planning her study time. Gradually, your daughter should learn how to organize and complete her homework independently.