Ideally profiling and calibrating your monitor is the best course of action, however there may be other ways to make things better.
First question is in what way don't the prints match the screen. If it is a simple overall colour balance then when you start to print it may be possible to make a correction for this.
The Epson printer has a colour matching option which enables you to make a change to the way the printer prints your images. Clock on printing preferences, select advanced options. and choose the "colour Controls" tick box
You'll see several sliders that change the colour of the printed result. You can use this to make changes to compensate for the monitor / printer miss match. OK it's not ideal but if your prints are always too blue than you can use this to compensate. If you make a change save the changes using the "Save Settings" button. Just make sure you select the correct setting every time you print