Doodling Problems

My doodling problems are getting worse, and I don't know what to do. Even my teachers could tell. If I forgot my name on a paper they could tell because of the doodles. Now I was making a card for my friends birthday so    I put it in an envelope. It was plain white. Plain WHITE! To plain for a birthday envelope if you ask me! So I added a small drawing, and then it became bigger and bigger. Until the whole envelope was drawn and colored. Now what do I do? Mom says it's fine, but I think it's at least a tad bit out of control. Okay. Okay. A big problem. But what do I do? Help me out! (Or just agree with mom)I'm thinking I might just leave it, but I don't know. We'll see how my friend reacts.