Your treatment schedule sounds similar to mine, although I am one round off finishing chemo before radiation. I too found the vibe in the Day Infusion room was positive and supportive. I do relaxation and meditation and attend a support group run by my breast care nurse ( thanks to the McGrath Foundation). I know what you mean, don't need eople to say well done, just to let others know that with support and a good mindset you can cope much better than I thought I would.
My mantra is
FAITH - have faith in my medical team
TRUST - trust their decisions
BELIEVE - believe everything will be ok.