I'm a little surprised that you're planning to be a cardiologist with all this time you use on art. I mean, I can see why you might want to go for that job, it'll pay well, but you should never go for a job just for money. It may turn out to be something you don't enjoy in which case you'll be trapped going day by day doing something you don't enjoy so you can get money to pay your bills to keep on living so you can keep on doing something that you don't enjoy. While I understand it may not be my place to lecture you about this, I though that it might be worth giving you something to consider, and if you've changed your position then I guess this wouldn't have any relevance anyway. xD
Hmm, it's not that I'm doing it for money, but ever since I could remember I always wanted to be a doctor and art was never something i even considered to do for a career. I do spend a lot of time on art, but for me, it's simply a stress-reliever. I don't smoke, or drink, or really do any clubs, so art's always just been an outlet for me.
Well alright then. It's good to know that some of my initial assumptions were unfounded. I wish you luck on that path because it will most definitely be a hard one. Be it the challenge of Medical School, the debt from it that you will have to deal with, or just the daily stress of that job. Although, it has some fun perks. You'll have the weirdest and best stories to tell. I have a cousin who is working to become a doctor and his current job has him working in the ER and Hospital a bit and he already has such weird, fascinating stories already, but I digress. Work hard and study harder if you aren't doing so already, Ciao~!