I've had experience with this. If the cuts are still red, you have to wait. Just keep a shirt until they heal. If the cut has turned into a scar, use bio-oil! It works great. There are even home made remedies you can find online! Instead of cutting, just draw on your body, it has the same effect, just with no scars. That really helped me. When I feel like cutting, I go take a shower or draw, I try to keep myself busy to distract myself. If your family still sees the scars, just say you were attacked by a cat, that excuse has worked for me :)