Battery life on my Mac..

Hey Applecore peeps,

So, recently, I purchased my Macbook Pro, 13", Mid 2012 edition. I have to say it is amazing, but as you guessed from the title, the battery life. My battery life is surprisingly odd. I've only had it for a month and it drains so fast, I turned off my Back-lit keyboard and put my screen brightness on half and my battery life fluctuates, when I don't have something like Skype open, and just internet browsing and typing up an essay, I get around 6-8 hours but once I have skype open, I get 1-2 hours as soon as I take it out the charge.

So my question to you is, what do I do?

Thanks!