Agggh! I have my first ever phone interview in a few days and I'm going crazy.

Agggh! I have my first ever phone interview in a few days and I'm going crazy. I just took a break after getting a 2 year degree and decided to apply at a few companies. One of them has responded and is asking for a phone interview on Thursday. I have never had a phone interview and I haven't seen a speech therapist since high school (my insurance won't cover it). I tend to have a pretty bad stutter over the phone and being under pressure will only make it worse. I really don't know what to do. Does anyone have any ideas? Edit: hah, I just realized there was a thread about it from a month ago. I feel dumb. In that case, would anyone like to practice over the phone a little?