don't try to create partition on your internal storage, it might cause damage on your phone like bootloop or deadboot.. you may try to create partition on your sdcard which is the safest method.. search google on how to use Mini Partition tool
Ahh thanks sir . poblema ko kase sir maliit internal storage ko laging nagfufull kahit 8gb yung SD card ko . gusto ko sana hanapan ng sulusyon to . sana matulungan mo ko sir