To assess the impact of this  activity, we had our students fill in this survey to make them conscious of their habits, set targets of improvement:

https://forms.gle/ynMnokdNC9orXmSt5

Here are the results. They show that students have space to improve their habits with an average score of 19.5/36.

The sample students committed to change their habits and as we can see, their answers were better the second time they were tested: