Hello and thanks for using Just Answer.
I am Al and am happy to assist you with your enquiry.
First and foremost, as you have signed a 12 month Agreement, you are legally bound to pay the rent for the full term, which I note you have already done.
However, most Landlords are happy for a Tenant to surrender the Tenancy early and to find a replacement Tenant PROVIDED the outgoing Tenant pays for any rent up to the date on which the new Tenant moves in aswell as any fees incurred by the Landlord in locating the new Tenant (ie his Agents fees and any admin fees involved).
I therefore suggest that you speak to your Landlord nicely and see if he will agree!
I hope this clarifies the position to you and answers your question.