How do i stay strong for the kids?

As a single mother of two children for many years now..I decided I was the parent with the other one who was absence for the most part..I found others to talk to..journaled my feelings..redirected my anger and resentments..and finally got rid of them all..it is better to let him out of your system..think about how great it is to raise the children yourself..even when it is hard..life has to be better for you..children see how really loves them in the long run..children come to an age where they can decide to have dad in or out of their lives.my children finally got to that point..they are happy without the dad..since it was the dad who messed up their lives in the first place..they will heal in time..they will make their own decisions about their father at one point in their lives.