I rewatched every ig stories i saved from DFR night, i didn't find any clue that she was talking about 2018. I remember in an interview, she admitted she felt not confident enough after her pregnancies which is acceptable for a supermodel who gains her life with her well-shaped body.
IMHO, I don't even think she felt that much bad related to her appearance. i mean, she couldn't have shown up on the VS runway just 6 weeks later she gave birth.
Adriana should be the last person to feel bad about her appearance, she is 37 and still looks like she is in her late 20s. Look at Josephine Skriver she is 10+ years younger than Adriana but her first work for Maybelline was a Anti-Aging foundation. A 24 yrs old, young girl was just used to promote Anti-Aging line by Maybelline. This also proves how cruel is this business. Adri, on the other hand, still hasn't switched to the Anti aging line yet.