Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_55 (psychological_dependence INTEGER, physical_dependence VARCHAR, pleasure VARCHAR, drug VARCHAR)

### Question ###
What is the highest Psychological Dependence, when Pleasure is less than 2.3, when Drug is "Cannabis", and when Physical Dependence is less than 0.8?

### Accurate SQL ###

SELECT MAX(psychological_dependence) FROM table_name_55 WHERE pleasure < 2.3 AND drug = "cannabis" AND physical_dependence < 0.8