Buying a House for me, fiance and my 4 Daughters

I am a Father of 4 Beautiful healthy girls. Me and my fiance have been battling to get married due to the Demand of taking car of our children, and making sure that they are fed, go to school and keeping a healthy and steady routine for them. I am the only one working and am paid below minimum wage. it has been a struggle to afford a bond to secure a Morgage because my salary is not enough, we are barely making it every month with the rent that we pay.

We are renting a one single bedroom flat of 2m x 4m ( 6 foot x 13 foot) and this living arrangement is not healthy for everyone in the family. I pray to god everyday for a miracle because i have fallen short in making sure that my family is taken care of and living a healthy and prosperous life, my pain is the fact that my children cannot even be free in the room because there is hardly space for movement. I have tried my best to make sure that they have the best life i can give my family. its getting worse now because my car has broken down and i cannot even give them a break by taking them to the park and the children are becoming frustrated in the living conditions that we are living in.

It is difficult for me to be a father that provides for my family because we have been moving from flat to flat because the landlords we have experienced have rejected us because we have "a lot of children" as they would say. The Urgency for me right now is to Secure a House so that i can be able to Provide stability, make sure they get the best education that i can afford.