My first car that I learned to work on was a 1971 Dodge Dart 225 slant 6. Wasn't much of a car but I learned a ton with such a simplistic mechanical platform.
Got the car after it sat for 15 years. Worked on it until it was running and driving.
Hopefully you have a nice garage that you can keep it in to work on it.
Hope to get a nice 60's muscle car soon as a project.