I swear I'm losing my mind over my lack of capability to do anything, even things I enjoy!

Don't know why but ever since Friday I have had absolutely no motivation to do anything, literally anything! Not even the things I enjoy. It just feels like I pick up an activity. Do it for 15 minutes then stop doing it and are just stuck feeling this way for the past few days. It's like something in my brain just switched and I've become a completely different person.

I don't even know if it has anything to do with ADHD, AuADHD or what but seeking to find focus on something, anything just feels impossible. I just wonder when it'll just click and I'll be back were I left off. What can I even do?