Don't record the advice videos like you've suggested you would. There are a number of stories about people who've done this and it's turned out badly. If you're just saying things like "I love you and hope you're doing well!" that's great... But advice? Advice needs to bend and twist with circumstances. You've no idea what situation your daughter will be in 20yrs from now, and how the video could appear to her. What if one of the videos is "Congratulations on the degree!" and she flunks out? She'd be fine and likely do well in life anyway, but that video would be painful.
My mother came from the deep south, and her advice about African Americans when I was a child likely would have been to stay away from them. But now, as an adult, my wife and I adopted an African American child, who is the light of my mothers life. They are inseparable and she's now an emesary of inclusiveness to her southern relatives. Circumstances changed all of us, and any static, unalterable message from 30yrs ago had my mother been terminal would have done nothing but cause us pain now.
Pass on your love and support. Leave the advice for the living.