You should seek help. Just the fact that you have been hiding it should let you know that you are doing it for motives that are not attention seeking. Just because you haven't been doing it for 'long' doesn't mean you don't deserve help. A lot of us just refused to acknowledge that it was a problem early on. Or were to scared of how others would react. I'm assuming you are a teen (sorry if I am wrong, it's just a guess). Do you have an adult you trust and can be open with? A teacher or school counselor, youth leader, family friend, or parents. Do you have any idea why you are cutting? Issues at home, issues with school, relationship problems. What emotions are you trying to escape?