My husband is going to sign up with the army in spring, im supportive but personaly freaked.need advice.?

hi there, my husband is going to sign up with the army in spring. i have many unanswered questions, like how do i cope with three kids under six, how do imake them understand whats happening? how can i be the woman he needs me to be? what if he gets injured? dies? how can i be everything my kids need me to be when i dont have the answers myself? dealing with moving and knowing no one, the mive adjustments, what if he comes home changed ?( like ptsd) now pleasedontget angry here but like what if he cheats on me ( never hasin 8 years) but id never know. how do i live normally when he is deployed? im not an openlyemotional person how do i get the support ineed with out burdening him?is there a chat site for military wives? how can i get a little me time being by myself w/ my kids? etc etc etc........... i know this is a very odd question buti needanswers and no one around me seems tobe able totell me.