Hey i'm 16, i've since a few years had a habit of every now and then chewing the inside of my cheek until it bleeds and bleeds and hurts so much that i can't eat anything because it is extremely sore! i also recently have started sort of.. picking at my gums? i have braces and my bottom teeth right in the centre i push my nail into my gums constantly and move it left and right to the point the piece of gum is swollen and i think detaching from my teeth and really moveable?! i know its not good but i do it about once a night and cannot stop! i also tense my jaw and crack it left and right , and all these things i sometimes do within the same time frame! my mum says its anxiety but i'm not sure, and its starting to really affect me as i can't stop doing it and its causing me pain yet i wont stop! please help me!