You're not alone clearte. The emotional swings, especially when your mind isn't busy, can be brutal. Best you can do is focus on you and being the best dad you can be. Others have said its a marathon and not a sprint. Best we can do is GAL and focus on bettering ourselves to keep our sanity while the marathon plays out.
Keep your head up brother!
Me39 M11 : T13 D9 BD 5/31/16 In House S until 6/21/17 Divorced 10/5/18
