Finally I had made a little step forward. Yesterday on Sunday morning I've already cut pieces for block, border and binding and prepare block components. I plan to use just one basic 16" block. Since I made up my mind to make a twin size bed cover so I think I need 20 blocks. I made strip sets by sewing each group of five strips together. If I have done this I'll cross cut each strip set into 2 or 3 and then arrange blocks by rotating and rearranging as needed to make good dispersion of color.
I found this pattern from Free Quilt Pattern website. For those who's a truly beginner like me should check this website. Really helpful!