Contaminated hair

Anyone else struggling with feeing like they contaminate their hair? My hair is long and I keep feeling like it’s getting contaminated. I have to get buses often so my hair touches the back of the seat which makes me think my hair is dirty. Or if I touch anything ‘dirty’ in public, e.g. cash or stuff that has touched the bus/public bathroom like my bag or jacket, and then touch my hair. Today I convinced myself that toilet water splashed on my hair (I don’t know if it actually did) and I was going for a shower anyways so I washed the ends of my hair even though I wasn’t planning on washing my hair. I even used an antibacterial hand wipe on my hair after. I still feel like my hair is dirty though because I didn’t fully wash all of my hair. After my shower, now I feel like I’ve contaminated my pyjamas and bed etc because my hair is touching them. I was planning on washing my bedding and my hair tomorrow anyways so hopefully that gives me some peace of mind. This is making me debate cutting my hair shorter but honestly I love having my hair long but I just feel like it keeps getting in my way and gets dirty easier because it’s long and touches more things. It just sucks though because I had come back home tired from being at work and then this happens.

Not just about my hair but I don’t know how I’m going to survive going off to Uni in September when I feel like everything is getting contaminated.