How to make alot of money so i can get the horse of my dreams?

i need to know how i can make 6000 dollars i need that much to by a beautiful palimino missouri fox trotter mare named sunny. and i really need to buy her because the place that she is staying at every one hates her! because she is mean to them and the other horses but im one of the only people who she is nice to and trusts. and i need to make the money fast becuz there is another little girl talking about buying her and nothing bad okay im only 12! and plz help me i this horse and she loves me!