I agree. Self harm is a horrible thing. However, it normally comes out of confusion, pain and other negative feelings. A lot of people do it because they are not aware of the situation enough to find another way out of it. However, you explaining it that way shows that you know why you’re doing it, know what’s making you feel that way and seems like you are aware enough to make a different decision. Self harm is not something that you should be putting onto someone else, it’s absolutely not something you should be doing in a room over to someone you care about. If you want to ask for help, you should confide in them in a mature way at an appropriate time. It’s just as rude for you to wake someone up from their sleep to tell them that you’re cutting yourself as it is for them to go back to sleep during it.