Even after many years of color coordination and having fun with fabric, I find that sometimes my vision of what I expect from a combination of fabrics doesn't match what I have on hand, as I'm mostly "shopping my stash". However usually I'm pleasantly surprised with the results, or I may end up changing my direction in midstream because it just isn't coming together. Have ended up with some I really like and a few that I hope someone else will love because it doesn't do anything for me. Lol!
Just keep playing with fabric and try out things out of your comfort zone in small projects like wall hangings, table toppers, totes, etc. Above all have fun in the process!