Hello, I Have Been Having Strange Routines For About 2

Hello, I have been having strange routines for about 2 years now. Everynight before I go to bed, I have to eat cereal otherwise I can't go to bed. I have to wash my hair everynight because I feel like I could have brushed up against something dirty. I have to walk back and forth from the bathroom to have drinks or I can't sleep. When I get out of the shower, I have to get a tissue and open the door with the tissue, because I'm afraid someone has touched there and it will contaminate me when I'm clean. I am also petrified of people touching towels I'm going to use, or pyjamas im going to wear that night. These "routines" take a few hours each night. I have had to do every single one of these routines everynight for about 2 years. It's really starting to affect daily life because I am afraid to touch certain things, if someone touches the towel or even brushes up against it - no matter how clean it is i have to get a new one and ensure no one has touched it. I even sometimes photograph my room to make sure noone has touched any of my clothes. Could this be something related to OCD?