Hi There, I'm A Female Aged 19 And I'm Really

Hi there, i'm a female aged 19 and i'm really quite worried - basically i think i have quite severe OCD in the sense that i need to say certain things over and over again and touch things a specific amount of times and things need to be an even number and for some reason i hate number 7. it's really messing with my life because if i don't do it i think something bad will happen.