Need dog advice

My 2 problems is 1 pitbull I have named roxy has high energy so if she gets excited when we pull in driveway she will attack my German shepherd which is how it originally started. And lola my pitbull is a pure bred $800 pitbull breed to fight. I ended up with her when someone left her at my house. She is sweet angel but is unpredictable and can flip out over jealousy, excitement, and the german Shepard's taking her toy when shes not looking. She will shake when one of the other females come around that she doesnt like. Then her eyes change before and after fight. Like a death stare. She even came after me twice after we finally broke them up. We did spray them with a fire extinguisher which worked right away. Think I'm goanna get muzzled and let them all just fight for an hour. Wish I could find the right home for lola and her boyfriend toby (a nice loving dog) hes the only one she can run and play and cuddle with. But everyone who has responded is always some young black guy from the bad part of town just wanting to know if she's been spayed.