I want to second this idea - usually not getting feedback quickly is one way students don't realize how far behind they are. In this regard, I think it's worth

I want to second this idea - usually not getting feedback quickly is one way students don't realize how far behind they are. In this regard, I think it's worth it to take a look at your assignments and see how you can make them easier on you (e.g. an automated test suite / well defined inputs and outputs or goals that runs on shared infrastructure and unambiguously tests "works or not" goes a long way)