Future Mr & Mrs

My partner had proposed to me in November 2012. Unfortunately we have been unable to set a date as yet due to financial obstacles. My partner and I do work very hard but the cost of living in london is burning a hole in our pockets and although I am currently living at home with family at the age of 21 I am the only bread winner in my house playing the role of mum dad and only income provider, which is again putting a strain on my wedding savings. I know normally family will support newly weds to be but in my case my family is currently in a will war, so i hight doubt I will get any help. My partner and I would like to get married in the summer of 2017 (to give us enough time to save), and do not want to put of the wedding any longer. We would feel really, greatful, blessed and honured for any help.