am i doing something wrong?

i recently took a break from the constant dieting and gained 6lbs. i’ve been trying to lose them and get back in the game to lose the final few pounds till my goal of 92lbs.

i’m 18F 4’11 (150cm) tall and 106lbs (48kg).

i’ve been eating 1200 calories but still somehow not losing any weight?according to the online calculator my tdee is 1500? i’m confused whether i’m miscalculating my tdee or if i have to eat below 1200 to lose….

i am an online student so my day is spent in bed or at a desk. i exercise atleast 2-3 times a week. i do 30-60 minutes on my stationary bicycle and 20-30 minutes of pilates.

please help i feel extremely lost