Help i always feel like someone is watching me and help with ocd?

i am home alone all the time and am kinda independent and made fun of at school and people scare me a bit bout killers and robbers and rapest and etc. and i need help without going 2 doctors or telling my parents it bad enough im positive i have ocd asthma glasses braces expander and this and other crap and i remeber when i was little my cuzin and i were under the trampline talkin bout this and he said alyssa dont u feel like some1 is watching u and i said ya y and isnt it werid cuz he said i do to and we kept talkin bout it and talking on the phone makes it better but its hard cause my friends never have time to talk on the phone i am home alone everyday saturdays and sundays not so much and i hate this feeling its uncomfortable any way to get better and also get better with my ocd if i touch the door with my left hand i have 2 on my right and i do it in public bout in like private or like if i itch my chin with my right hand ill like try to itch it again but with my left and when people high five me i have to use 2 hands and i used to have 2 touch things 4 times but that stopped and i have a problem cleaning and things have 2 be perfect and i hate germs like i go 2 cooking in school and a girl like rinsed her hands and i was yeling at her to wash them and she said she did cause she just came from the batrhroom and i freaked out cause im like a lie detector and i thought she was lieing and its embarrassing