A few things I know:

It is obvious that you are being called to make a difference, just like I am.

You are making a difference, you just don’t think about it that way.

You need to get back into a group leader situation. Your group was always involved in helping people. I believe that you miss and need that.

When frustrated, do something. Remember that you can’t eat the elephant in one bite. You can’t solve the world problems all at once either. Start in your back yard and move out from there.