Welcome to the forum. That's a nice gift.
If possible, camp a few nights in your yard or driveway. You will learn how to work everything while at home. If it's not possible, go to a nearby campground.
It's nice to know how things work before hitting the road.
And, an important thing, CHECK YOUR TIRES. RV tires usually age out before they wear out.
They may have plenty of tread but, be dryrotted.
You don't want a blowout or tire problems while traveling.
Enjoy your travels. Don't hesitate to ask questions on the forum, there's lots of experience and advice available.