Hey Gengruiliang, 

Obviously, this is a common mistake made by my students too. This is a very useful website which explains the Chinese grammar points in English. I got many of my teaching ideas there. https://resources.allsetlearning.com/chinese/grammar/

This is the summary of the differences between ‘不’ and '没'.

1. 不

* is used for negating in the present and future. 

* is used to negate habitual actions  

* is normally used with adjectives 

* is used to ask questions

* is used almost exclusively with some verbs ( Correct: 不是、不在、不知道、不认识 ;  Wrong: 没是、没在、没知道、没认识)

2. 没

* is used to negate past questions  

* only 没 is used to negate 有 ( Correct: 我没有（没）钱、他没（没有）车 ;  Wrong: 我不有钱、他不有车）

* is used to make comparisons  

You may refer to the website for detail description.

All the best, Gengruiliang.