You have never changed a tire until you change a Dunlop Elite III on a GL1800 Goldwing.
The key is to get good tire lube. Watch the videos. Watch them again.
First, put the tire out on an asphalt driveway for an hour. This subdues even the meanest tires.
If you can't do that, make a little cardboard box and use a hair dryer. Or, stick a 100 watt incandescent bulb in there and come back in six hours.
We have a No-Mar changer. Even with that, it's all about technique.