I got the piece from daila I've gotten parch and sand and i have 4 of each djinn what do I do

welll you need to get the other two pieces from tundaria tower and ankohl ruins. when you have done that and the island quest thing you should have six of each djinn.

I need to get burst so where do I go

Tundaria tower (south part of the map)

there is a djinni outside of the tower and one inside as well