go to my files in samsung folder click it there You find internal storage option now open it. in this you will find WhatsApp folder, open it. Now in this there are so many folders for audio, video and voice messages. when you open these folders one by one in each folder there is sent option just select it and delete all the files. these are the files you have sent in your WhatsApp these files are of no use. 2nd option create ur samsung cloud account store ur gallery into it. or create ur account in google photos, sync it to gallery, once synced u can delete your gallery. Or Insert memory card(if you are using only one SIM) move your downloaded apps to memory card. By all these steps u can create more internal storage in your phone
