Will you have someone with you? The first infusion is the scariest, as we don't know what to expect. The chemo nurses are usually wonderful and you should feel protected and cared for by those professionals. I had different chemos from yours: I had four Adriamycins with Cytoxans, each three weeks apart. Back then (18 years ago), Herceptin wasn't being given to non-metastatic HER2+ breast cancer patients, at least not at MSKCC, so I never had Herceptin.
Chemo isn't fun but it's very doable, and the anti-nausea meds are even better than when I needed them.
WhatNext is a great source of support and info, so you've come to the right place! I look at Reddit Cancer, too, and there are many young people on that site (I'm 69 but was around your age - obviously - at my diagnosis). However, I don't see on Reddit the kind of closeness that I see here.
Well, again, I wish you a tolerable next few days, and keep us posted as to how you're doing. Hugs from Brooklyn!
