Hi there mimi9959,
I am really sorry that you are having troubles with your WD drive.
So the drive is not powering up at all right? If this is the case, there are two possible scenarios.
If the drive is not hardware encrypted(WD Elements), then you can try taking it out of the enclosure. After that you can either connect it internally through SATA or externally with SATA to USB cable.
If your drive is hardware encrypted(WD My Passport), you will not be able to access the data if the drive is out of the enclosure. Unfortunately, this means that you may need to use the services of a data recovery company.
You can check WD's Data Recovery Partners out:
http://products.wdc.com/support/kb.ashx?id=c953Pi
Hope this will help,
D_Know_WD