open a animal shelter

okay so here is the thing,I have an australian shepheard/chocolate lab mix and I am on the hunt for a companion for him. I have tried human society and the pound and I got things wrong with that well what i have noticed is 1. the humance society only helps humane cases were dogs are treated or abused but do not help strays. 2. the pound kills them with in two weeks they are there which is kind of sad for me since I am an animal lover.

So if anyone knows how about that I could open up a rescue not for just strays but for people who can not take care of them because of reasons like moving,or allergies. Can someone please tell me how to?

I love helping animals!!!! I hope I can open a animal shelter when I get older with all kinds of animals from cats to horses!!!