It took them 6 months to take my gallbladder out. Like you, I was presenting to the ED at least on a weekly basis... I would have to wait out the 4hrs after they gave me a pethadine or morphine shot but somedays they would get bad results back in my bloods (from my liver) which meant I had to stay in the hospital for around 3 days at a time. I was physically & emotionally a wreck, and I also had a 3yr old and a newborn at home at the time... thankfully my ENTIRE family rallied around to support us which made things a little easier but even with all those visits, it was only after 6 months that I was bumped up the list. It was such a dreadful wait. I had lost loads and loads of weight and looked terribly unhealthy for it... I was in constant pain and it wasn't only fats that brought attacks on for me... toward the end, even stress brought on an attack that had me in hospital for 3 days.
I definitely hope & pray that you don't get stuck in a similar situation to mine. Ask to speak to the surgeon and plead with him/her to do it asap... in the end that was the only thing that worked for me.

All the best sweetie.