[2] In 2018 Stickler competed at her first British Championships where she placed eleventh in the espoir division.

Additionally she won bronze on balance beam behind Alia Leat and Mali Morgan.

Individually she won silver in the all-around behind fellow Welsh gymnast Emily Thomas.

Early in the year she competed at the Welsh and British Championships, placing second in the all-around at the former and third on floor exercise at the latter.

Stickler made her international senior debut for Great Britain at the Koper Challenge Cup.

[10] Stickler next competed at the Paris Challenge Cup where she placed sixth on floor exercise.

In October Stickler was named as the alternate for the team competing at the 2022 World Championships.

She helped Wales win the team competition and individually won bronze on the uneven bars.