Hi rosie! I was told when I started quilting that garment sewing and quilting are different so throw out what you have done before and start anew.
A D9P is a Disappearing Nine Patch which is a go to pattern for quick, easy quilts. If you do a Search of the Board (see above links) for D9P you will get more than you wanted to know. :-D
Here is one of them under tutorials that I like:
http://www.psiquilt.com/2009/03/disa...ial-super.html
judee