when I was GSM 45 I focused on leves in Mor Dhona rather than triple-turn leve,because at that time I did not have enough mats and money to continue that leve. Also the leves I did it mordhona was giving me 160k exp per completion (If u complete 2 leves at the same time) in 1hour and half I was 50 GSM! . I hope that help you