Una - you've got so many stressful (and potentially stressful) situations going on in your life right now, that its only normal to feel somewhat out of sorts and/or unhappy.
Fashion is supposed to be fun, and it sounds as though you're not having much fun with it right now. Maybe, just stepping away from it (you've certainly got items in your current wardrobe that can get you through for awhile!) rather than forcing the issue would be the way to go? I
know for me (and I'm in a somewhat similar place as you), fashion and my wardrobe takes a back seat when I'm having to deal with crises of my own - or of my family's or friends') One of my dearest and oldest friends is going through a similar situation as your friend, and when I think about her and spend time with her - fashion is just not that important to me. I remember reading a book - I think by Anne Lamott? (but not sure) - where she describes a scene with her friend, Pammy, who is weeks away from dieing from breast cancer - and Anne has taken her shopping with her - Pammy, bald, weak and in a wheelchair and Anne is in a dressing room trying on dresses - she walks out and asks Pammy if the dress makes her butt look big, and Pammy just looks at her and says "Anne, you really don't have time for things like that." (Or, she says something along those lines - I can't remember word for word, but regardless, it has always stuck with me.)
Maybe Una, you just "don't have time" - like "emotional time" for doing anything more with fashion/style right now than what you are doing. Maybe there are bigger, more important issues that you're dealing with - or, maybe its not that profound - maybe its just that winter is lasting too long, you're sick of you're wardrobe, and you haven't seen any spring "stuff" that is bringing a smile to your face? I know - I'm rambling. Sorry! I'll end this by just saying "there, there!"