Sometimes you got it other time you just don't

There are those days in life when you have your feelings in check, your brain engaged and mouth waiting for instruction.  And then there are those days where it seems like your mouth is on a roll, and you are having an out of body experience of "what in the world are you SAYING".  I mean really keep it going and someone is going to suggest you are a mental case.  (Maybe I really am mental and I am just in denial). 
Apparently, when your children have bad experiences in life, you take it PERSONALLY1  Go figure.  The last thing anyone wants is for their children to have to experience this messed up world in its full glory.  Truthfully, and when you are in a good space (see first sentence), you know that all their experiences add up to make them the person they need to be.  It teaches them how to not be bitter, angry, or vengful, but rather they are able to be the better person and rise above those experiences.  They learn empathy, how to look at people in reference to their bigger picture (you know messed up home life, messed up behavior), and to just learn that in some situations it is best to just walk away and not try to figure out the "whys?".  We parents do everything we can to get them started on the right path, however, it is really their will and choices that will take them on this journey of life.  And as parents, sometimes we don't understand the why's either (most of the time we just hate them).  But I had an experience yesterday, that has left me feeling that I are a mama bear whose cubs had been hurt and I still want to scratch some eyes out. 
Where AM I going with this?  My kids are going back to traditional schools next year (100% their choice) and I am terrified.  I have to let them go (and really, they are WAY more forgiving and trusting than I am).  I have to trust that they will be o.k., that I haven't messed them up for life and  however things play out this year they will learn and be exposed to great experiences. I just have to remember "Change is inevitable, misery optional".  I can't control a lot of things, but I certainly can control my attitude, outlook and response to them. 
I know, I know "MENTAL!".