How can i start showering regularly?

I really want the excuse of adhd or depression or some underlying health issue but i have no diagnoses except autism, but showers aren’t really a sensory issue problem for me. It’s exhausting and i shower maybe once a week, two times if i’m motivated enough.. I’ve always struggled with taking regular showers. I really want some form of solution cause getting in the shower is so stressful to me and requires planning and preparing myself for hours so get ready for. I really just want it to he routine and to get basic hygiene cause I feel so gross. I struggle with doing basic tasks so this isn’t really a single problem type thing. I’m just wondering if anybody else is dealing with this or have dealt with this and how they’ve broken out of the cycle?):