Don't worry, chakra changes are nature manipulation and shape manipulation. From where they come from it can be released from thin air, mouth, hands, ect. You don't need to explain that any way you were okay but I'm gonna explain my own way of water.
The most fluid of all the elements its main properties vary with many things it can be free flowing and flexible, it can be used to create large amount of water to literally push back an opponent and make the suffocate, sharpen to impale a opponent on contact. Its calm nature makes it very easy to control unlike the other elements. But like mentioned its also a very destructive nature if used correctly. With it you can summon a large amount of water which can like I said, push a opponent back and hurt them. But its not all it can break in some cases if used with enough water can break many trees, plants, and cause serious terrain change. It can also out wait on the opponent making it hard for movement. Its ability to impale or pierce is also strong not as potent as lighting but it can still cause serious cuts and stabs which can seriously hurt a opponent.
Like I mentioned in the above elements water can be used with many combos, I don't want to repeat typing them to waste your time.
Water is strong against fire because it naturally extinguishes the flames (though a sufficiently powerful fire technique can cause evaporation) but is weak against earth because earth structures can dissipate the force of water rendering the technique ineffective. it can be used with Wind Release to increase the speed and destructive power of a water technique.
Got it?