Start Chemo next week any advice

Hi I have a thread going on newly diagnosed but now am starting chemo next wednesday going on the NeoTago trial arm B2 that is paxitaxal first and gemcitabine - no doubt spelt wrong!! scared now say that these treatment every two weeks and takes about 4 hours plus - anyone had it on it how the side effects and I have read painful whilst having is this right what about the hair still loose it too - god seemed to be okish till now but think it has hit home big style now glad discovered this site seem to be so many of us going through this!!!