Hi Just Had Colonic Mass Removed [ 5.5 Cm] From

Hi just had colonic mass removed [ 5.5 cm] from decending colon on 8/3. staging T 4 N 1 M 0. had 1st dose of chemo 9/14. next dose 9/26. getting Folfox tx. colon margins are negative proximal and distal. would like to get your opinion on my survival rate status post Folfox.?? I'm told the first 2 yrs post op are crutial time. will need F/U testing, labs etc. no other health issues, just the recent cancer mess. also, can I have my hair dyed while getting chemo, or should I wait the 6 months? I get the chemo thru a porta cath in upper right chest area. I'm an RN, so you can talk medicial terms TY