Newbie a little nervous about driving a class a

Thanks for the responses. :). Good ideas.

I found this. Looks pretty cool:
Rand McNally RVND 7730 LM RV GPS with Lifetime Maps and Wi-Fi https://www.amazon.com/dp/B00N3RM186/ref=cm_sw_r_cp_api_PGrtzb7W9Y725
Anyone use one of these?