2 days ago my trans started slipping out of no where wen i pulled out the drive

What is your question?

so i turned it off then sat then started bacc up n it took off drove for a few then started slipping again so i changed the filter/screen put all new fluid n it drove for a whole day then started doin it again but if i turn it off then start it bacc up it drives for a few then does it again does this mean my trans is gone