I was quite nervous too, the first time I talked to someone in the language I am learning on Skype. After all, no one likes to feel stupid. But I found that it went really well and, after that first time, it has become much easier. I encourage you to try. If the person you talk to makes you feel bad, don't be discouraged, find someone else!

Make little steps. First type with person more often and then if you feel a little safer with person call him/her. Tell them you never done that before but you want to try. That way they will understand if you get nervous a bit more. =)

Hi, I suggest that you practise Skype with your friends first. Don't worry, your language partners won't mind if you make a mistake. It's all part of learning a new language.