Just hang tough oz, I don't think you are losing it. I was gonna respond to your post on the other thread but will post that response here. You used the term " nervous breakdown " , that is the exact term I've heard some others use also to describe the level of anxiety they feel.
I'm not sure what I can say to help you more other than to know you're not alone in this, and it will pass, just keep the faith and give it a minute, I'm not much of a teacher and not sure if any of my ramblings ever help anyone....lol... I think this is a new direction and journey for us all, new purposes and facing some things unfamiliar with what we have known as our usual comfort zone