aud v gbp

Hello
I,m hoping for some advise please.

I,m and Australian living in London soon to return home.

I have sold my business and have a fair amount of GBP and was
disapointed when i saw the exchange rates.

I will not need most of the money for possibly 12 months, I know nothing about currencies (novice commodities investor)

So my question is do you see the pound get worse over the next 12 month and should exchange it now or can you forsee it getting back to the 2 to 1 ratio

Any Advice would be much appreciated.

Thanks