i would say no mate not worth it at all
i paid 2.5k tpft when i was 21 on my first cosy never againwould i pay that sort of insurance, it was only the fact that i had bought the car and didnt think it was going to be that much as i was told it woudld be cheaper when i ht 21
so glad im 25 now and its not even in the 000 barriers anymore
get yourself a rst or sumthing for now and go for the cosy ina couple of years