Welcome to the MRA Community! I hope you have a great trip. As for questions and advice, you'll find that this community is most welcoming and very active.
As for tips and advice in using MyRoute-app, I have a general one: I've seen many clubs, groups and associations transition from whatever they used to use (for example BaseCamp) to MyRoute-app. For a lot of these clubs, the real benefit in MRA lies mostly with a handful of people who do all the planning, organizing and testing of routes. A benefit for these "organizers" is that by making your club part of a MRA group, you can have them download the routes specifically for their device. That way, no more sitting around converting routes manually or keeping long mailing lists. Additionally, more people can have access to the route.