You will get there. Right now it feels like you're thinking about everything, but slowly you'll think about less and less, you'll develop a pace, and you'll be able to swim longer distances.
Stick with it and set a goal!! You can do it.
They say it takes at least 10,000m of swimming before stroke changes become ingrained and start feeling natural. Stay with it.
I'd rather be swimming...biking...running...and eating cheesecake...
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2008 Cervelo P2C Tri bike
2011 Trek Madone 5.5/Cobb V-Flow Max 2007 Jamis Coda/Terry Liberator
2011 Trek Mamba 29er