Still Struggling

So I still break down everyday, even though my wife passed away over 5 months ago.  The littlest thing can set it off.  I try to hide it from my kids, but there are some days I can't hold it back.  I hate getting upset in front of them, because i don't want them thinking about there mom on my terms, but on their own.  I ask her to help me everyday, and help me be the incredible parent she was to them.  I just want to do everything to make my kids happy and get them through this.