Wide angle filter stucked on my lens?

Um I have a nikkor 18-55mm lens. And I had a wideangle filter. When I put the filter on, it won't come off anymore. I tried so hard to take it off but it won't.

You need a pair of filter wrenches available cheaply from any photography shop or even eBay, you need to get the right size.

http://www.ebay.co.uk/...&_from=R40

If you don't have one of those laying around, try putting a rubber band around the filter so you can get a better grip.