This may be a bit long so please bear with me.
We got our first dog last January. We put a lot of research into it and I read three books as I'd never had a dog before (DH had lots though). We've spent a lot of time trying to train our dog. Unfortunately she still tries to run away when she can get out the gate (if I leave it open by accident or she manages to open it) and is a LOT faster than us. She also barks like mad when people come in or leave the house and having a guest is nearly impossible because m, despite trying everything, she doesn't stop barking. She's definitely strong and sometimes nips. We can't leave the room if she's in with DC (for the loo) and I don't let her near DC2 (4mo) as she's just too temperamental. We had this dog from puppy for context and bought her.
This is where it gets harder. We rescued two puppies two two weeks ago, for various reasons. They've been very good and easy enough to train but they're small dogs so maybe that's why. Dog no1 can't be in the same room as them as she attacks them, every time.
I don't know what the solution is at this point. It's not fair to give dog no1 away but I don't know what else we can do? She's not safe around the kids or other dogs and I have failed training her to be calmer and not to bark so much and to not run away. What do I do?