angry 1yr old? hitting himself?

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whenever my 1yr old gets mad, hed hit his head and cry, or pick up his toy and throws it. hed shout too. also, when our newborn cries, sometimes he gets annoyed, goes over to the newborn, and shout at him. if my newborn is in the bouncer, hed shake it. id tell him to stop, he gets mad, shout, hit his head and cry. how do i get him to stop with these behaviors? he does not learn these from my husband or i.