Feeling for you whg, I know its extremely tough right now.
I feel only time is going to help. When my w moved out and I had to take my kids to her house for the 1st time i thought my heart was going to explode and had thoughts that I wouldn't be able to do certain things with or for my kids again. (I realize your referring to your step-kids)
You may or may not be able to send them off to school again but you will have other and different opportunities with them. It's up to you to figure out and define what those things will be but you are a great person and I know you will find a way to stay in their lives however you are able.
