I don't blame you.. My insurance was £1900 before I passed my test and £2200 after.. Just the pain of being a new driver I guess, but you have to get it out of the way.
Expect your insurance to half for the next 2-3 years. Mine was £2400 (inc. mods) 1st year, £1400 second year, £700 3rd year. I think at the moment lowering my car by <50mm would cost only £15 on insurance so it's not too bad. I'm with Admiral btw.