I've just been really irritable with my mam and feel terrible. Why can't I stay calm? She has only recently been diagnosed but I already feel like I can't do this (we share the house she owns so I've kind of fallen into the role of carer). She's been really difficult to live with for about a year; so much so that my depression meds have been increased and I'm now on beta blockers for anxiety. What is wrong with me and why can't I cope?