One of my close friends DD's got a 28AA in her first L4 season aged 6, her momma was so proud and little one was so cute. Fast forward a few seasons and she is a young L7, first meet in March. Smart parent splayed down scores and placements from day one and it shows. It is ALL in the way you spin it.
I always try to make sure my DD knows that no matter how she does at a meet, it is just how she did at ONE meet, nothing more, nothing less. Maybe she had an awesome day, hit all her routines and got 1st AA and maybe she had an awesome day, hit her routines and got 10th AA. Or she has had a meet she didn't feel she did her best routines, had a fall and still got in the top 3. She has been happier when she didn't place at times because she did her best or made her goals, than when she placed well, but wasn't happy with her routines.
I have always tried to stress that at the end of the day, the scores and placements don't matter. And really, she doesn't remember what she scored or placed after the meets unless she finds an old scorecard or looks at her medals.
I think it helped that she started off at the bottom of the pack, too. She has been at the bottom, at the top and everywhere in between. Sure, she gets upset if a meet doesn't go like she hoped, but she knows that it is just one meet and by the next day is over it. And she gets that even if you place 1st at one meet, the next you might not, because that was just one meet, too. Maybe you had an off day, maybe someone else did, too. But it is what it is. No what if's allowed either.
She has also learned that scoring really is subjective and varies from meet to meet. She has watched herself after and said she felt scoring was high and that made her realize scoring can be low, too. You might do a better routine and score lower or vice versa.
Scores and placements will always be a part of gymnastics, but I think it is important for gymnasts and parents alike to realize that they aren't everything. I remember in my daughter's first level 4 season, when she was scoring 28s and not placing, a fellow gym mom "friend" said she wouldn't keep her kid in gym if she was scoring that low. I told her right then that the smile on my kid's face was enough for me. She was proud of herself and so was I. She has come a long way from that first year, but still has the same smile and excitement before and after each meet.