I have three big bits of advice.
1) GLUTAMINE - of course, ask your health care providers, but this supplement (10 g swirled in water, 3x per day for days 1-5 after each treatment... or more). If you do a google scholar search on glutamine and chemotherapy, you'll get a lot of hits. This stuff seems to help with all sorts of chemo side effects, and the one week when I slacked off, I really had a different (and worst) experience. It also has the benefit of helping you drink more water... Buy as a powder from a health food shop - buying as capsules is super expensive per gram. I used two big containers through chemo, and each one cost around $20. Totally worth it, if you can do it.
2) Tell your health care team EVERYTHING - and I mean everything... Including poo problems, weird sensations in your chest, and more... EVERYTHING. For many of the side effects, they can help!
3) No matter what, do not stop moving! If you are active now, maintain whatever you possibly can. Some days might be rough, and you might not get out, but keep those days to a minimum. I rode my bike every single day ... The shortest ride was like 8 minutes.... From what my health care folks told me, couch potatoes suffer the most chemo... and active people who stay active suffer less. If you are not active right now, start small and build... Walk a bit every day... building up to something like a half hour a day nearly every single day.
Overall, the good days do outnumber the bad... And while it seems like it takes forever... I also felt like it was over before I knew it...
I'm sorry we share this diagnosis. I wish you maximal effects with minimal side effects.