Hi Zo
It is very common that a baby will naturally fall into a routine where their long stretch of sleep starts around 7 or 8pm and they then wake through the morning.
In order to try and postpone that long stretch to later in the night, Tracy recommends offering the dreamfeed, as you are trying. It often takes a week or so for the LO to get the hang of feeding during the dreamfeed, and then having the long stretch of sleep after that. If that is your goal then I would encourage you to perservere with the dreamfeed for a little while and see how it goes.
Good luck
Jo