Take it one day at a time. I had to go through the same things, NG tube for the longest time, parts of small and large intestine removed, colostomy bag, no food or water for weeks etc. etc. It's really hard getting through it, but just take it one day at a time. Sooner or later you will be back to your old self, as hard as it may be to see, there is light at the end of the tunnel. Walk as much as you can and take breaks when you need to. I've been there and I know how hard it is. Just keep doing as your doctors order you to do and as hard as it is, try not to stress out too much. I wish you the best of luck!