Hang in there Fvr, you'll get the hang of it soon enough, almost everyone suffers through this learning curve. I remember the same frustrated feeling.
Consider this though, how did you feel before you caught that first steelie...

That was much more difficult than this will be.
As for the double haul...I like to avoid thinking of positions and getting too technical. I just thought about working the line. For myself, I realized it was basically speeding up the line in order to load the rod faster and more efficiently. A short firm strip will get that line moving first when you are getting the line off the water, then again as you load the rod for the forward cast...
Timing and technique are important, but I feel if you dwell on those to much, rather than thinking about what your line is doing, it'll take longer to get the hang of it...
I am by no means a good caster, particularly when compared to others here...but I will offer this...it didn't take me long to figure it out, so don't get discouraged...
Roche fishout soon...you'll get a hang of it by then...
:cheers:
rib