I know the feeling. If you invest in a quality straightener, you'll probably have much more luck with it.
I bought a CHI Turbo (on eBay, so it was less expensive than in stores), and I love it. It's such a huge difference from when I was using Vidal Sassoon and Hot Tools straighteners.

I haven't straightened in a while, because my hair is in dire need of a hair cut (I think it's been over a year since my last cut), so the ends of my hair are atrocious.

If you're looking for a nicer quality straightener for less money than a CHI, I'd suggest checking out an Andis. I think they only make one, which is a ceramic, but it's very nice. My friend got hers for 25 or so from Target, and it did a very nice job straightening my hair. I did end up buying a CHI, but I do recommend the Andis if you're looking. Link

Good luck,

"And death is at your doorstep
And it will steal your innocence
But it will not steal your substance
But you are not alone in this"

“My ability to turn good news into anxiety is rivaled only by my ability to turn anxiety into chin acne.” - Tina Fey