Well, Skype always works. But if skype isn't an option, make sure you do things that you enjoy, and relax you. I've found that while it's hard to relax myself, it is easy enough to watch something/talk to someone/do something that makes me laugh. Laughter's great for you and relaxes you, too.
Think about all the stuff you would like to do for ur girlfriend or do with her when u see her, Try listening to her voicemails or rereading her text to calm ur nerves down its reassuring u how she feels and that she cares and shes with you.
RELAX... you are posting on here a lot about this girl. You really care about her, you know how to make her happy, and how to handle things. Just be positive and confident as the relationship grows. When things get more intense and if she is this dream girl then the two of you will be together. Keep peace of mind and focus on keeping the relationship positive and strong. You guys are also in the age where you can video chat, you can snapchat, facetime, there are many things you can do to see her, even not in person. What can be a fun way of getting to see eachothers face is instead of texting during the day you can send the message with a picture of yourselves and your reactions of the conversation, or funny faces, ect. it is a very cute way to talk and is entertaining at the same time. Don't fret. You two are going to be just fine :) and definitely thanks to the way you care about her like this team NickLombardo!