niece how do I do this

Ok I hear my mon some time talk about her niece;s and it a lot, My aunt had nine kids all different ages and now some of my cousins kids are having kids this is what my mom count as a niece . No joke . For me I have two nephews and no niece,s
I some times see my late childhood best friend his daughter kind of as nieces there not blood , But I like to try to make his daughters happy since my friend pass away the week before Christmas . So I know the ladies and his son his hurting they are all in their early 20;s I rally never got close to his kids because I live in Florida for a long time when they were born so his kids they know who I am but they rally do not know me . I am Happy that his brother and sister are doing good . For me I do not have any kids of my own I wish I did that one of my dreams to have my own family . I am 54 but I do not care I think have a family of my own would make me complete Some people say I am nuts. You know what I say is nuts let a person do their dream then that person will be very happy. So now let get back to niece who ever is my future wife her brother or sister if she has one might have kids then there a chance I will have a niece by marriage . right now I wish I had a wife I get tired of living alone. So I am hoping before the fall of 2017 comes that I find my soul mate and make her my wife this is one of my goals.Ok that it for this one,