Roundabout Help - Orsett Cock Roundabout - 3rd Exit A1013

Hi, I have a new job so I have to drive this roundabout daily now. I need to take 3rd exit after coming off the A13. What lane am I meant to be in? I have been on the left all the way around following the road markings, but it feels wrong. Should I go left, middle, then indicate off to change lane? Any help would be appreciated.

Hi, I have a new job so I have to drive this roundabout daily now. I need to take 3rd exit after coming off the A13. What lane am I meant to be in? I have been on the left all the way around following the road markings, but it feels wrong. Should I go left, middle, then indicate off to change lane? Any help would be appreciated.