It's hard because you have 2 Jacks and they probably get each other built up energy wise. It might help you to do an obedience class with them so that you can work on commands like "sit", "stay" to help with their excitability. Making sure they get consistent long walks and having a structured routine will also help.
It helps to tell people to ignore your Jacks while they are trying to jump up and lick. Only pet them when they are calm.