well there is allot of information for it on google but some things can be misleading so i will give you a simplified version of it.
First of all you need to know that even though your chakras should be in balance you should also cleanse the nadis(pronounced nadees). What are your nadis you ask? well the nadis are simply what carries energy through the body, they are the subtle's body equivalent to veins. Some times even though the chakras are balanced you need to clear the nadis from fragmentation.
before i go into the chakra specifications ill lead you with the guide to cleansing the nadis with the breath, since you already can create psiballs you understand that energy moves with breath, so all this exercise will do is move the energy into those blocked areas in the nadis and free them so more energy can move even more free than before.
Nadis cleansing exercise
sit in lotus position or lie flat on your back on a comfortable surface, try to stay away from beds unless you are sure you won't fall asleep. Relax close your eyes and focus, take slow deep breaths when you inhale allow your stomach to push outward, when you exhale let it return to its normal state. now take a deep breath on the count of 8, hold it for the count of 4, release on the count of 8 and visualize and feel your nadis being cleansed.
repeat this step as many times as you feel it necessary
go to this link for full chakra information