Feline - good luck with the first chemo. My tips; drink a lot of water before and during the chemo, make sure you have lifts organised there and back, have some fresh pineapple to eat as it might be the only fruit that tastes nice for a while and its good for your mouth, eat small meals regularly, and nothing that is in the elast nauseating, be prepared to feel fine at first and then you'll suddenly realise you're going downhill - this might be after 2-3 hours - just rest, rest, rest for as long as you need. My own pattern was to rest and sleep for about 3 days then I'd pick up again. Gentle walking is very therapeutic when you have enough energy - even just 15 minutes in the fresh air is very helpful.
Take a bag in the car in case you're sick on the way home. I wasn't, but I was glad to feel prepared!
The effects on the bowels can be very variable.
The steroids may keep you wide awake - see how you go and if side effects are bad, speak to the nurses, don't hesitate.
Its doable, honest! I was also very weepy before starting, but once you've had one, you count them down. I also wept at the very last one - with relief!
The hair thing is no big deal really - I had mine cut to 1 inch when it started to go funny, then washed if off in the shower a few days later. It was actually a huge relief as its quite uncomfortable before it falls out.
Good luck.