Ali
I'm about the same stage as you, maybe a bit further on.
In the beginning I drank the pool, coughed and spluttered and generally was uncoordinated. The more pool time I put in, the more things slowly began to gel. You develop your own stroke pattern and timings, and with coached input these can be worked on. The more you do, the more regular will your stroke pattern become. It's all linked to the central key to swimming at our level: BREATHING. Water is not our natural environment, although I do think that my daughter has gills.
The secret appears to be the ability to continuously breathe out via the nostrils when under water. It's not natural for runners, who will gulp inhale, hold, blast exhale, gulp. Swimmers seem to gargle a half and half air/water mix with barely a head turn. They talk about using the depression behind the bow wave. It's a long way to go yet for me.
None of us will ever be Chrissie Wellington or Ian Thorpe. But we are better then we were, and we'll all be better still as we practice more.