I usually recommend a tank be 9 months old prior to adding an anemone, specifically so you can mature as well as your tank. In nine months, you'll learn a lot about how your tank runs, and how to keep water parameters from shifting wildly. Around that time, you're more apt to be ready to take on an anemone.
You probably should get someone else to house it in the meantime until your tank is better suited to accept it back.
When you get home, please do test all your water parameters and post up the numbers. How long has it been running? What lights do you have? What is the average water temperature? Please read this article: http://www.reefaddicts.com/content.php/302-Maintaining-Good-Water-Quality
