Carl, I totally understand about the "love/hate" relationship going on.
Personally I enjoy building custom cars more than owning or driving them. For me it all about creating something unique (modified or custom) and mine. I've never considered buying one that was already built by someone else. I love the satisfaction of knowing that I did ALL of it myself, never paying a shop to do things for me (except possibly something like machine work that I do not have the proper equipment for). And that applies to the entire build process, from a total heap to my dream image of what the car should be. At one point I turned this process into a business but realized that took all of the fun out of it. So I continue to do it solely for my personal interest. Which is why I do not post a lot of photos or show my vehicles...they are for my personal satisfaction only.
But as I get older it has become more difficult physically to do this type of work. Particularly after a significant injury left me with some permanent neurological damage and disability. It takes it toll on me, so I can only do a small amount each day. This makes progress extremely slow; I collect new projects faster than I can complete them. And that is very frustrating. Especially when things need to be done twice, or worse - multiple times. Particularly tasks that are more physically challenging. That is when the "hate" side can seem to overcome the "love" side of things. But I continue to do it. I guess that is how I am programmed. Or maybe it is more an attempt to try and keep my youth alive, who knows.
I suppose there will be a point when I have to stop for physical reasons. I already experienced that for a long recovery period after my injury and it was difficult to deal with. So I'll cross that bridge when I come to it again. Until then I keep plugging away at what I want to do (not what I need to do).