It is sad to say but from the time we are little, we are brought up and taught to listen to someone else's idea of what is good or bad or how something should look based on their ideas and concepts. We are taught early on about perfection and what it means to be artistic and creative by someone else.
I think Pablo Picasso had it right.
"Every child is an artist. The problem is how to remain an artist once he grows up."
"I am always doing that which I can not do, in order that I may learn how to do it."
"If I don't have red, I use blue."
"I begin with an idea and then it becomes something else."
One of the things I love about painting, is that I am able to create and have learned that it's ok to mess up. Pick a color and if it doesn't work, try another. Try a new finish. If you don't like it, paint over it. In messing up I am learning what works and what doesn't. At the end of the day, I can see what I've done and what I've accomplished. And for the most part, I stand back and say....."yeah, I like that." And that feels pretty darn good.
Bring out your own creativity in life. One small step at a time.