You are going to have good days and bad days. Your whole life has been turned upside down. The important thing is to keep getting back up and taking a step forward. Baby steps count too. : )
If you remind yourself that contacting your wife ( other than needed for the kids) will push her further away it may help you stay strong. Fake it until you make it.
Is their a running or biking group you could join? Sometimes that's a good way to keep busy and make new friends
Me 52 H 44 T9 M 5 BD 12/11 H split 8/12 OW moved in 12/12 OW gone for good 6/14 We get closer again 9/14 SD 13 Me 4 Grown
Accept what is...let go of what was and have faith in what will be.