Obssesive compulsive disorder. Problem!

I feel always i get infected from any thing out of my home i want to take bath after come home i always wash my hand many times i feel infected when i touch my bag, laptops if it is used any one out of home i wash my hands when i touch my bag, laptop when it is home cause it is with me outside always and i placed it anywhere in a neat and clean place i feel i get infected when i wear the cloth in home which i used in outside from home. at the time of starting this problem my parient just ignore it and now this comes in my behaviour thats why i m getting problem in living normal life i am not able to work for my self and i m not able to love and care myself sometimes i think all things is over in my life and i m living my life just worthless i m suffering this problem from approximate 10 years how can i get overcome from this problem