Mate I’ve gone through a divorce this last 12 months. I can tell you last Christmas was the saddest period of my life (even allowing for the death of my father). The enormity of the family life you had with your kids really hits home to you at this time of the year, when it’s no longer there. My daughter is still being cold to me (even though it was my ex who wanted to end the marriage) all you can do is try and be reasonable with your ex, and hope she comes round and allows you more access to your daughter. If not you’ll have to go through the courts, as every dad is entitled to see their kids. Get through this difficult period mate and things will get better for you.