You have to enjoy the car no matter what version of "enjoyment" you subscribe to. If it is restoring the car to the last nut and bolt or just putting it back together to beat the crap out of it, Amen to both. You can't sit and think what might happen if I take it out on the road. I had a lightning bolt hit next to my garage a couple weeks ago and what was I thinking? Hey, I should have had that car out of there and on the road at the time.
I remember back in '86, right after I finished the restoration on my 71 hemicuda ragtop, the first show I brought it to was the Supercar Showdown. I had that thing rev'd up to 7200 rpm in high gear and what was I thinking? I was thinking, hey, this thing is at 7200 rpm and I am still losing to a g-d damn, 4-door red Impala with a 427/425 and a four speed. That's what I was thinking.