Oz, your question is fair, but is certainly one of those which is much better experienced and practiced, rather than explained in writing. It is reasonable that you have to take some time to figure this out, and you should devote an hour or so of flying to that, and nothing more, if that's what it takes.
It is likely that you are flying an aircraft which is co-operating with you in turns, most do. There is the potential in the future though, that you could fly an aircraft which is much less co-operative in respect of co-ordinating itself in turns, or even straight flight for that matter. This is something which should very much be instinct in you. Don't give up understanding it, until you know you have a grasp of it! Practical experience is the key with this one...