This road is never ending and with computer technology everything shifts even faster.
Honestly, I am not a very good concept artist but I do learn how to render a nice image. It helps to create an beautiful image which is in our mind but how about if we don't have vivid images or great story in our mind. Ideas and fresh thinkings are very important.
Good life drawing will help a lot and it will shorten the learning curve. Reading a lot or go to different museums or study other artists' paintings, even their background. Keep yourself open to all different kinds of art ,understand yourself and make sure the artwork represents yourself.
This is a road not just to create but also to discovery yourself.