Photoshop Illustration

Once I got out of high school I gravitated towards becoming an Illustrator, but then I stumbled across Game Design. I thought I would take a shot at becoming a designer, but then I found out that Illustration had a place in Game Design! At that time I knew that I wanted to do something that would work off of my strengths (Which is in drawing). Researching a bit more I found the title Concept Artist and began following it. I would like to learn as much as I can about Photoshop, so I can begin piecing together Illustrations in short amounts of time. I would like to become as proficient as possible in illustration and concepting as I can.