badboy, what kind of yarn are you using?
And I'm assuming this is crocheted cable you're talking about since it's in this area of the forum?
I find that post stitches in general (if that's what you're constructing your cables with) work better with certain kinds of yarn, and less well with others.
My favorite crocheted socks (which are total jazz) have a ribbed cuff that I work with various front-and-back approaches (loops, posts, etc.). I also make socks from a wide array of yarns for different uses. I'm always amazed by how the ribbing works better or less so depending on the type of yarn. Same with any high profile stitch.
The only tip I can offer is, don't panic. Keep going, don't be too hard on what you created. Give it a bunch of rows, try changing your tension...or just pause while you've still got not much to tear out and try making a pattern swatch till you pfutz your way to what you like. The swatch can be used in something later.