ANYONE PLEASE HELP! I AM FREAKING OUT NERVOUS RIGHT NOW!!!?

Ive met this guy on eHarmony two and a half months ago and I will finally get to meet him tomorrow. I am so nervous and my hands are all cold and sweaty. I haven't even heard his voice yet but Ive been talking to him on IM like every day for hours. I only saw pictures of him. I am so nervous about actually seeing him and talking tomorrow. I haven't really thought about it before but now its all coming to reality and im FREAKING OUT! What can I do to calm down? Im sure everything will be okay but im just hate the anticipation part. Thanks for any advice <3