After 3 rounds of chemo, this isn't helpful any more . . .

you suggest it was once helpful to hear that, so that may be why they think it will work still

Try to keep in mind, they are trying to be helpful. It's impossible for them to understand what you're going through; They're not going through it. Since they can't understand, they have no idea what to say or do to help you feel better (And they do want you to feel better). So they fall back on the same old platitudes. If you know what you need, tell them. If you you just want them to shut up and hold your hand while you cry, tell them.

When people say that they should at least give you a good reason with it. Other than that ya that would get annoying. I'm on pills for bipolor depression and someone told me " change your thoughts, change your world" and i nearly punched him in the face. Like i haven't already f**king tried. For me, I am glad though that there are people that love me. Hope you think about the same. But above all good luck. I don't necissarily think positive either, but fight hard, eh?