Hey d11wtg (Bob), I like your persistence and attitude! I've been sailing for just about two years now, and I have to say that first year was pretty cruel. Everything seems waaaay to hard. But somehow it all starts to come together and then the real fun begins.
It's cruel that you need to endlessly fall off, suffer up-haul rope burn, blistered boom hands, shred skin from your toes, stub your toes looking for straps, stretched ya arms sockets and face plant like a Gumby to be tuned up perfectly to sail. But ironically, the more you suffer, the better you will sail, as you build fitness and ballance that's transforms you into a good sailer.

Once you can sail half decent you'll be stoked at all you have achieved, and know deep inside not everyone has the skills or patience to be a good windsurfer- this is why kites are so popular (sorry, couldn't help myself

)
Anyway, the bright side is everything gets easier with time on water. So keep at it Bob, look for shallows locations to practice waterstarts, beach starts etc. You will learn something new in any wind from 3 to 35 knots, but the fastest progression will be in that more comfortable 10-15 knot range.
Remember, the best windsurfer in the world is the one having the most fun!
Cheers