Trying to finally get my first Muscle Car - I’m nervous

I’ll make a suggestion, why not dip your toes in the pool instead of jumping in? Maybe look for a nice driver quality car of lesser value, /6 duster, 318 dart sport etc, as a first old car and learn some of the valuable techniques it takes to keep one on the road. For a few thousand you could probably have a very nice A body that isn’t extremely sought after but will be your “classroom” for the time being. You’ll still have a classic, fun car, and the experience you get will go a long way toward maintaining (or building) a much nicer car in the future. And when the time comes to sell it for your demon, you could probably recoup most of the investment if you just maintain it.
This is very good advice, my Orange Duster I restored too nice, did not even drive it last year even though it is 99% done, but I bought a plain jane 6 cyl Duster and drive it everywhere, old plane jane has dents and scratches, minor rust, but I am not afraid to park it anywhere, way more fun than a restored car.