Rowan,
There were days I didn't know if I could do it, but that support network you speak of kept me going and fought the battle with me. Even my the 6 year old son who would pet my head or hand me a tissue when I was throwing up was in this battle with me. Make no mistake it is a daily struggle/battle. You are scared but ready, you will do well and be on the road to recovery soon. Time will pass, not as quickly when you are going through it, then one day you'll be done.
Good luck on the journey.