Hi anchorbird,
There's a lot of ups and downs on this journey and what you're going through is normal. Look at it like a breakup from a long term relationship that was dragging you into the pits. No matter how bad it was you're still going to be a bit depressed. That depression eventually dissipates and you have some great times coming. Hang in there, this gets sooooo much better!
This board is essential, lots of people for support and who have been through exactly what you're feeling.