jeny, homoeopathic medicine can help to modify your sex drive so that you are comfortable with your sexuality.
Homoeopathy cannot act in the way Estrogen does, to suppress the sex hormones. In this sense, what you are asking for is not possible in homoeopathic medicine.
Homoeopathic remedies act to release the patient from unwanted symptoms rather than to impose a different hormonal regime on the body.
If you want to use homoeopathy, it would invlove a more in-depth process than you are requesting here. A homoeopath would need to take your full health history, including what you are able to tell about the events and feelings that brought about your current preferences.
Since sexuality is a sensitive area of human life, you might not wish to post your full case on this public internet site. In which case you could email one of the practitioners on the bulletin board or consult a local homoeopath if there is one you can trust.