Cut it up if you cant manage it. Also stop all non essential purchases until this is paid off. Pay the maximum you can afford off it each month, without leaving yourself short at end of month e.g. 400 if possible. If you reduce day to day outgoings by E20 a week, that's an extra E80-E100 for CC this month.
The more you pay in one lump sum, the less interest you have to pay on outstanding balance. And since card is cut up, the balance should always be coming down. You should be debt free in 3 months this way.