I apologize if this comes off as gross or something, but I’m genuinely trying to understand this so that I can be clean.

I showered daily as I work construction job already a red flag when it comes to hygiene, I understand. But I have my own personal nail kit in my car that I use almost every day. when I wake up in the morning, there’s dirt under my nails and I don’t know where it comes from. I use washcloths and I get everywhere. Personally, the only place I can think of is the top of the head, I don’t shampoo and conditioner every day because I don’t like the way it makes my hair. I do that once every four days. should I start moving more frequent hair washes?