By the sounds of it you have beautiful hair.
If you have to set it then I would suggest getting some soft skimmed internal layers introduced into your hairstyle. ...More >
This will reduce the internal bulk and lighten and support your curl.
You would not loose any length yet your curl would become much easier to control and your style would last much longer. Use Tech Ni art by L`Oreal professional Curl memory product.
Apply a little at a time to your hands and work through the hair section by section prior to styling.
Your hair will be fabulous.