Cutting and trimming your hair ends doesn't affect the follicles in your scalp, which determine how fast and how much your hair grows. Hair grows an average of a ½ inch every month—whether or not you cut it. No, not cutting it won’t stop growth but failing to trim split ends could kill your length-retention.
That makes it seem like your hair has stopped growing when it really has not. You’re ust losing as much as you happen to grow out.