Belak began the 2018 season once again competing at the World Cups in Baku and Doha, finishing sixth and eighth on vault respectively. In June Belak competed at the Mediterranean Games. She helped Slovenia finish sixth in the team final. Individually she won the bronze medal on vault and placed seventh on balance beam. In August Belak competed at the European Championships where she finished eighth on vault. In early October she competed at the Leverkusen Cup in Germany where she helped Slovenia win gold as a team; she posted the second highest score on balance beam.