I'm sorry you are experiencing so much irritation. I'd have to say, based on what you wrote, I think it would be little short of amazing if you weren't struggling with caregiver burnout. And I would presume, sadly, depression & overwhelm may well be "fellow travelers" so to speak.

Here are links to 6 articles, from PC's archives, 3 on the subject of caregiver burnout & 3 that address overwhelm. Hopefully something in them can be of some help in figuring out how to proceed here:

Caregiver Burnout: The Importance of Self Care

Caregiver Stress | Mental Health Awareness

Self-Compassion as an Antidote to Empathy Fatigue

Overwhelmed? These 6 Strategies May Help

Feeling Overwhelmed? 5 Tips that May Help

https://blogs.psychcentral.com/imper...g-overwhelmed/