Nights Nineteen & Twenty

I think I need to stop telling people that Isabella had a good night cause it seems like every time I do, she feels the need to prove me wrong.
Night Nineteen was good. She went to bed at 10pm, woke up at 4am, went straight back to sleep and was out till morning. Thought we were definitely getting into a good routine.
A couple friends and my mom asked about her yesterday and I said hopefully we are seeing the light at the end of this dark sleepless tunnel after all!
Then last night she went down fine and slept till 4am again but then was up until 6am. I just kept doing our same routine over and over when I would put her down but she just kept screaming when I would leave the room.
I did finally try bringing her to bed with me but she didn't like that either. Finally, I did our routine again, gave her some homeopathic sleep juice and she was out.
Now if i could give her this stuff every night we would be golden but that is not teaching her anything so on we go trying to figure this out.