what is the difference between clothes and clothing ?

Clothing is the abstract reference of attire; where clothes is the specific one.

Change of clothing is something a fashion model does many times a day.

Go change your clothes .. [You cannot say "Go change your clothing"]

Food and clothing are considered necessities of life. [You cannot say food and clothes]

Clothes Clothing Difference

This topic is worth more attention

getting the girls to wear clothes are hard.
clothing the girls are hard. (Gerund)

Change the way of your clothing
I like your clothes