I have receding gums...?

there could be several causes to this, so only a dentist can evaluate you and tell you why it is happening. Some common causes are over zealous brushing. You may be brushing too hard, or using a toothbrush that is too hard and it is abrading your gums. Only use a soft bristle toothbrush and when you brush do not use a scrubbing motion. Place your toothbrush at a 45 degree angle (slightly angled toward your gums, so that the bristles will go slightly underneath your gums) when you brush, use a vibrating motion instead of scrubbing. Its much easier for me to show this than to try to describe it, so bear with me. Only brush a few teeth at a time. Plaque is soft and is easily removed, you do not need to scrub at it very hard for it to come off. The bad thing is that your gums will not "grow back". Once they are gone, they are gone, but you can prevent further loss by brushing lighter with a soft bristled toothbrush. Hope this helps.