Carol Dweck revisits the implementation of Growth Mindset. There is a helpful chart at the end of the article to help replace phrases that may be seen as fostering growth, but are actually perpetuating a fixed mindset.
Sometimes you may need a pep talk to remind you of why you started something in the first place. This TED Talk does just the thing as a reminder to why Growth Mindset is so important and simple. All you have to do is add, "yet." You can watch the video or read the transcript from this link.