Paulsson competed at the Youth Olympic Qualifier where she finished in twelfth place and qualified Sweden for a spot at the 2018 Summer Youth Olympics. She next competed at the Nordic Championships where she helped Sweden finish second behind Norway. Individually she won silver in the all-around behind Mari Kanter of Norway, gold on uneven bars, and bronze on floor exercise. She finished sixth on balance beam. She next competed at the Swedish National Championships where she placed first in the all-around, on uneven bars, on balance beam, and on floor exercise. Paulsson competed at the European Championships but failed to qualify for any event finals. Paulsson was selected to represent Sweden at the 2018 Youth Olympics held in Buenos Aires. While there she qualified for the all-around and uneven bars finals. During the all-around final she placed seventh. During the uneven bars final she once again placed seventh.