@Diane,
I am glad you're asking for help. Have you been tasking medication to reduce cholesterol? That should be a big first step if not. Eat nuts, olive oil, fruits and vegetables (not bananas or potatoes). Do not eat milk, cheese, beef. Do take cholesterol lowering meds, fishoil, omega 3s, etc.
And watch the sugar.
To me, via the internet, you sound just fine. But I understand that I can't really be a good judge from here. You are less joyful than I once knew you to be, but given the health issues you and Dys face, that's easy to understand.