Moving to Sydney!

Hi all. Finally emigrating over from London in 2 weeks and have couple of questions from anyone there who can spare a few mins?
Planning to stay in a hostel for first few weeks until sort out a rental. Narrowed it down to Coogee and Manly as they both seem to be biggish, less agro beaches for someone who's still a bit rubbish. Is this right?
Also, heading out solo and been told that eastern suburbs are best re. bars/women etc - what's manly like? The beaches further north look amazing but seem a little tricky for commute into city - or is life out there worth a bit of extra hassle?
Will be doing loads of exploring when I arrive - just that any opinion/advice beforehand gratefully received.
Cheers. Jay
Planning to stay in a hostel for first few weeks until sort out a rental. Narrowed it down to Coogee and Manly as they both seem to be biggish, less agro beaches for someone who's still a bit rubbish. Is this right?
Also, heading out solo and been told that eastern suburbs are best re. bars/women etc - what's manly like? The beaches further north look amazing but seem a little tricky for commute into city - or is life out there worth a bit of extra hassle?
Will be doing loads of exploring when I arrive - just that any opinion/advice beforehand gratefully received.
Cheers. Jay