Triple Neg HER2 what questions

there are a number of different chemo combo's used for TNBC - mostly your oncologist will have a preferred protocol, and you won't know if it works for you or not unless it comes back at you - so I went through surgery, chemo, radiation then a few months later had a recurrence so now we know those chemos were not effective for me - luckily my recurrence was loco regional so still treatable so more surgery then radiation -  at this stage I found out that research shows that about 50% of oncologists don't offer patients what they consider to be expensive options - so I asked if $ was no problem would it change anything - then I found out that they can do more sophisticated pathology that they send to the US and might be able to give details on if one or other chemo combo's would be helpful - cost about $4,500 - unfortunately my TNBC is very aggressive with lots of mutations and there isn't any particular chemo known to be better than any other - however if I'd had a different TNBC it could have saved me from wasting time on an ineffective treatment and got me onto an effective one - even though it didn't help me at least I know I tried everything I could - so then I had more chemo - oncologist admitting it really is just a guess and minimising side effects was probably the decider between 2 options.  Good luck - sending gentle hugs.  make sure to ask them to explain what all the options are even the expensive ones -  I also found out that if I pay for the PET scans that would provide better monitoring for me - lucky I did as it found yet another recurrence and changed radiation plan, dose and area. -  best $450 I ever spent