Should i enter miss england or miss great britain?

Hey, my names Georgina, im 17, Ive just got a modeling contract and last year i was going to enter miss england but i only thought about it in october and the competition is in july, so id have to wait til next year anyways i have a cousin and we dont get along, wich is putting it lightly and were very competative with each other, shes quite self obsessed and thinks shes best at everything, recently i found out she had entered miss great britain, wich was fine cos its a smaller contest and i was entering miss england but now ive found out, she hasnt entered miss great britain, shes entered miss england, so now i dont know what to do, if i enter shes going to think im copying or trying steal her thunder even though i was going to enter first, if i enter miss great britain instead then if she wins its not as big a title, i dont know whether to enter miss great britain instead or enter miss england and compete against her? xx