1. Damage control: find ways whether there is a way to recover

Data. 2. Improve communication skill, try to have some personal relationship with people around you, try to know more about their culture, hobbies personal life and find common topics. 3. Learn from mistakes. Get a flash drive and always make your own copy. 4. Recommend a new procedure: the one who delete data should makes copies first before delete data. Or auto backup daily.