Congrats on your first RV. Now for some of the important stuff. Make sure you get nice black Winnebago case and go thru it. Take out the Owners Manual and start reading it from front to back. Then read it again from front to back. There will most likely be a few other big manuals in there, you will want to read various sections in them also. Those sections will depend on how confused you are with the Owners Manual as far as operating certain things.
These books are the Holly Grail and you should become very familiar with them, 90% of the time they will get you thru most problems.
Now for your first trip you want to try and use everything on the motorhome, just to see how it works and if it works properly.
Remember when in doubt get the Owners Manual out.
When all else fails, log on and ask us for help.
Good luck and enjoy.