Thank you for the welcome. I find it hard to believe that my girls are as old as they are. My oldest is now a mother herself to a very active 19 month old.
I think the hardest struggle I faced was the financial strain(I have just started in the last year and a half to get child support!!!!!). I was able to work, but 1 income never seemed to keep us above water. My girls learned to accept hand-me-down clothes, and we shopped in thrift stores if necessary. I was lucky to have many kind people who would help out when needed.
If you are able to explain things to your children, without playing mean or dirty(in regards to your ex), I think you will find that they are more understanding than we know.
Have a great day all, and be strong.