here’s a few links: http://www.dogsandbabieslearning.com/wp-content/uploads/2012/04/Relax_on_a_mat.pdf
and also try karen overall’s relaxation protocal - basically you start rewarding your pup for calmness and they start to really like it
@brittbrat hey! you can totally train your dog to be calm and it sounds like what he needs - look up relax on a mat, and other ways to actively teach an off switch - it’s important for pups to be able to settle down as much as play!