Hi - This is my first post as well - your diagnosis and treatment plan sounds very similar to mine (now 5 years on).
I remember the time waiting to start chemo was very difficult, being unsure of what to expect and feeling as though you don't have much choice about it!
I tried to just focus on each treatment, one at a time, and not look too far ahead. It will pass, although I know it seems like a long road ahead right now.
Always happy to share my experience if it helps, as I'm sure many others on the network will be. V xox