Don't bother. A college degree doesn't make you an artist man. The fact you are getting a degree in mechanical engineering means you don't have the dedication to follow through as a professional artist. That's not meant as an insult but doing this stuff isn't a matter of buying the software and BOOM your an artist. It takes YEARS of bloody knuckles and pain to "make it" in the industry. By making it I mean paying your bills on time. STAY AWAY MAN. Their is a whole slew of people who are HIGHLY talented who will eat your lunch. Get good in math and forget anything in "design".