Hope you have a great time at your quilt class. Not quite sure what D9P means but I think I have an idea.
As for picking colors, I find a focus fabric and then call in my hubby, he is more agressive in color combinations. I have a tendency to play it safe.
So my suggestion to you, while in class get some recommendations from others. We all have these amazing color wheels in our heads, all different for the most part and it will help you to expand, try other combinations. So much fun to be with other quilters when you are at this stage. We learn from each other, no matter what stage of education you are at as a quilter.
Be sure to share your creation and what you learned and have fun.