Dear MickeyCheeky,
I don't have much advice about what your path should be. I have noticed that how successful your are in 12th grade does not always predict how successful you are later. There is a boy in my neighborhood; was friends with my son growing up. He had a lot of trouble getting through high school (high school here is grades 9-12). Once he graduated, he became a plumber's helper (an apprenticeship program in the United States that requires no further school). He makes loads of money and is happier than he was in school. The IT training you have already received may help you in other career fields including art. Just keep talking to people like you seem to do. Maybe someone will give you a good idea that is a good fit for you. You have your whole life ahead of you. Good things could happen!