I'm 11 months post takedown and I am now only having to get up once or twice per night. Daniel R. is right that it's frustrating to hear, "it takes time," but honestly, it does. A good tip would be to monitor when you stop eating for the day and see how that affects the number of times you're up. If I stop eating around 7 PM, I can sleep through the whole night, but most days I don't even get home from work until 7:30 or 8, so that is impractical for me.
Another helpful tip that I just recently started following is to use a nightlight in the bathroom instead of turning on the overhead light. The bright overhead light was waking me up too much and I had a hard time falling back asleep. I bought a cheap nightlight at Target ($6) and I can now fall back asleep almost instantly.
Good luck!