Relax, this is something you can learn. You can download a color wheel if you want. Yes, by all means take a friend who knows color but ask her to comment after you make each choice, so you learn ... being told what to pick isn't doing active learning.
Look around you at nature, house designs [including furniture upholstery colors,] magazines, and books. Silently critique the quilts shown at your quilting guild/group. You'll find you know more than you thought.
If color choice problems persist please get an eye exam. Loss of color can mean cataracts and the eye doc may not even ask you about this. So tell the doc.
Enjoy your outings.