I've tried that both of your siggestions and I've been trying for 5 years now but I and Afraid her depression wiped off on me too making me depressed to for 3 years but then I helped it and became happy but I wish ,y mom could become happy too *~*
Y'see, my mum is exactly the same with me and she's been depressed ever since my Grandmother died. I guess the only thing you can do is do some nice things for her ;( <3