Can a dog get depressed after being neutered?

I have a Jack Russell and I just got him neutered. He is 11 months old and he is pretty well trained. I am not able to spend every waking minute with him but he recognizes me as his master. He does several tricks and listens to my commands. When I brought him home from the vet after being neutered a few days... show more I have a Jack Russell and I just got him neutered. He is 11 months old and he is pretty well trained. I am not able to spend every waking minute with him but he recognizes me as his master. He does several tricks and listens to my commands.

When I brought him home from the vet after being neutered a few days ago, he has been so mean. He even bit my face and drew blood. He had been growling at me and I tried to regain dominance over him because I was worried he could sense my fear. He may have been "defending" himself since he's not himself. Idk. People at the pet store said he was depressed. Others have said once a dog bites, he will bite forever. My vet said he didn't know why he was acting like that. Gave me a sedative to give him.

He is an aggressive dog and I'm worried that I will never gain control over him again. Getting a trainer is a very hard option right now financially and I am moving to another state so it's bad timing.The city I'm moving to is a large metropolitan city and I'm worried about liability.

I have found someone willing to take him although it's not confirmed. It appears as though it will be a great home for him since the guy is a professional breeder and works from home. The Dog Rescue won't take him cause he had a bad breeder and because of the bite.

Have I lost control forever of the dog?
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