Since you are new to quilting using cheap fabrics is fine.
My early attempts were not that good and I am still not to a good quilter level but I am getting close.
I am now ready to use expensive fabrics and not feel like I wasted them.
You can buy good fabrics on line at sale prices. I buy alot from
http://quiltinaday.com in the fabric frensy area. 3 dollars a yard for good quality.