Struggling with Daily Meltdowns and Shutdowns

I'm having meltdowns/shutdowns daily at the moment and it's impacting all aspects of my life. I'm trying to recover but I'm not recuperating enough before I have to return to my life responsibilities/ day-to-day functioning. I can feel my partner starting to get frustrated with having to deal with me during this burnout. They're normally really great and supportive but understandably this is affecting them as well. I feel overwhelmingly guilty whenever it happens and don't want to involve them. I don't really know what my aim is by posting this, so make of it what you want.