In my starting point for new users (linked in my signature) I also adressed this point, because it's usually what happens if someone tries to run before learning to walk...
In my opinion, a new user should start with a "learning project" and experiment with that for one or two months before scrapping it and startting again, because in that time he/she learns much about how to handle the editor adnd the engine - but to make a good game project, the early (and usually overcomplicated or malfunctioning) events and maps should not be maintained into your real game projects (that's why you should scrap them).
Anyone who thinks to skip those first learning months will usually hit roadblocks later in the development, costing more time than the time needed to learn how to do everything in the correct way.
Sometimes I read an answer like "I don't have the time to waste on a tutorial project, I need to start with my real idea" - and in those cases I always think "If you don't have the time to learn how to work correctly, then you also won't be able to finish any game project at all" - and the long list of abandoned projects and users we never hear from again prooves that imo...