doc told me plan on dying soon from Her-2 breast cancer help

I second what ziggypop said—get a second opinion. I can't imagine why your doctor says herceptin will do no good, because it is a treatment that specifically targets HER2+ cancer. It's just my opinion, but you might want to consider switching to another doctor regardless of the second opinion. I've seen your multiple posts and you're obviously very upset. Cancer is stressful enough without also having to deal with "Doctor Downer" and his "expect the worst" attitude.

another thought: I looked in the search feature and I see you've asked almost the same question a number of times over the past week or so, and several people have suggested that you get a second opinion. Have you called another doctor and made an appointment for it yet? Don't take this wrong, but if you haven't, get off the board and on the phone to some other oncologist right away. Sitting there stewing is not going to help you at all. Getting a treatment plan in place will. So please, call another doctor and get an appointment as soon as you possibly can.

You have early breast cancer that hasn't spread (metastasized). Unless he knows something you don't, in no world does that translate to a 6 month death sentence. 

In your many posts, I also see you stuck on the "GRADE 3" aspect of your breast cancer. While yes, Grade 1 and 2 are preferable, Grade 3 has advantages in that the cancer (tumor cells) are more susceptible to the effects of chemotherapy. Chemo drugs are designed to target and kill fast dividing/multiplying cells. Since Grade 3 cancers grow faster than lesser grades, chemotherapy is especially effective. It's just a way to look at the cup half full. 

I'm definitely not a doctor or oncologist - only a master's degree in rehabilitation therapy, but since my wife was diagnosed I feel like I have become adequately knowledgeable about the topic of BC, and I can tell you with confidence herceptin, perjeta along with chemo WILL have a positive outcome on your future. 

Definitely follow the advice of these smart ladies and seek a second opinion. 

I had HER2+ IDC with spread to lymph nodes and a 4-5cm lump and grade 3 so how they can possibly tell you to prepare for your death is beyond me!  Like the other ladies have advised you should definitely find a new doctor!  When I was diagnosed and told what my treatment was going to be, my oncologist told me he considered the treatment to be curative treatment. I'm 6 1/2 years down the line.

Hi Helen. We all know how devestating a cancer diagnosis is so we all feel for you. Did your doctor really say that? I think that's likely what went through your head but not what he actually said. If you had six months to live, it's doubtful they'd be bothering with treatment. Most oncologists are pretty good at not sugar-coating things and evaluating when treatment would no longer be effective. I think he probably said something more to the effect of the details of your diagnosis and you heard "you'll be dead in six months". Take some time to read around the boards and you'll see that there are many women, with a much more dire diagnosis, that are doing very well. I also noticed that in another post you are having trouble with the effects of chemo. There's no doubt it's not fun, certainly scary, but you can and will get through it. Good luck to you and take it one day at a time.