See if you can't find somebody to run you through things and tell you where you're weakest. Your instructor may do this for you too in the coming weeks. In my experience if I don't specifically target weak points in my skills I train the things I'm already good (because well, I practice those things all the time). Don't stress too much, most place don't expect to see serious skill in low belts, they want to see if you can actually do the techniques so they can focus on new things, coordination, timing, intensity etc takes a lot of time, which is why the kyu/dan system exists in the first place.