So the biggest help I found, was hitting that little flag when I get one wrong and don't understand something. That leads to a discussion forum about that particular lesson. Like any forum, it's mostly people interacting in a way that isn't that helpful, but it's very strictly monitored, so it's not like dropping into a general discussion thread. More important there are educated people that either explain things, it past a link to another, usually great, learning site that I never would have found on my own.
The other thing is watching things in French, with French subtitles. If you do English subtitles, you'll just read and tune out the French.