[2][3] In 2017 Zimmermann competed at the German National Championships where she once again placed sixth in the all-around; however she won the silver medal on both vault and balance beam, behind Emelie Petz.

[4] In May Zimmermann competed at the German Junior National Championships where she won the bronze medal in the all-around behind Emelie Petz and Sidney Hayn.

[7] In August Zimmermann was selected to represent Germany at the 2018 European Championships alongside Petz, Emma Malewski, Lara Hinsberger, and Leonie Papke.

[11] In June Zimmermann competed at the Flanders International Team Challenge in Ghent, Belgium alongside Kim Ruoff, Lisa Schöniger, and Isabelle Stingl.

[12] In August Zimmermann competed at her first German National Championships as a senior elite where she placed eleventh in the all-around and third on vault behind Sarah Voss and Emelie Petz.

[15] Zimmermann ended the season competing at the Cottbus World Cup where she qualified to the vault and balance beam event finals.