How long to sort out my sleeping pattern

[Lessthanmore]

My sleeping pattern is horrible. I tend to go to sleep late (12:30am) and wake up at 5:30 because I need the loo. I then struggle to go back to sleep.
I have been going to sleep at 10:00 but find I am waking up around 3:30/4am and then struggle to go back to sleep.

how long will it take to align my sleeping pattern?

Are you tired? If not maybe you only need around five hours sleep. I'd probably try not drinking past 9pm though so that you don't need a wee so early.