Losing Interest

With the info provided .
We all have setbacks and perhaps yours are debilitating.
But for a start get rid of the wagon
Try and get one car on the road.
Either the 65 Barrcuda or something else.
Would need to know why you have a 65 Barracuda to go further with that advice.
Personal preference, cost verses ability for something else?
At any rate driving is arguably more fun than working on them.
Bottom line there is get something you can drive sooner than later.
While few people can do everything, Abby does not think you need more than one car and not a project car unless you can do most everything yourself
Like rebuild a basic carburetor.