Do you think I have OCD?

I have a history of mental illnesses in my family... like bipolarism and depression and also a few eating disorders. I'm 15 and even though I am really unorganized I still feel the need to center things and organize piles and such ? haha I collect things that aren't really important (ie about 500 archie comics) and keep things alot just in case i need them for later.. apparently i'm a hoarder. i also constantly crack my knuckles and bite my fingernails, and if i need to crack my knuckles but am like doing something with my hand i'll freak out.. if i'm at home or a friends house i check doors multiple times, usually when a friend doesn't notice because they think its weird. for projects and such i'm a perfectionist and take a ridiculous amount of times on things i shouldnt. i've had weird thoughts occasionally as well. i'm not a germophobe or anything, i was just wondering hahaha.