2D Quilling
First let us start with the coiling of the strips. For rolling them (for a right handed person),hold the quilling pen in your right hand and insert the paper at the top. Then place it in your both the hands like this.
Then rotate the pen. After coiling the whole strip, you will find a smooth tightened circle. You can use the tightened circle also. But for shaping them you will have to loosen the circle a bit and then stick the end. Then give it the necessary shape. To start with you can start with some 2D shapes. After learning the shapes you can combine them and make a whole new picture.