Special queen #1 RQS (first indoor grow)

5 weeks into flowering now.., the plant i topped isnt blooming good at all, the buds are staying really small... maybe to much stress? (Broke of 1 of the 2 main branches by accident a few weeks after topping) or maybe i cut to much sunleaves? The weird thing is that the other plant's buds are growing better ( i didnt do anything to this plant beside cutting sunleaves) so i dont think its the lights im using. Any tips? My next grow is gonna be a shining silver haze and a blue gelato.