Answer:
Find out what makes art so hard and then work from there.
Explanation:
If the issue is about not having enough time to complete assignments, try to set up a routine to do the work in a specific day, or try doing it in little pieces. If the issue is that the teacher thinks you need to work on your skills, here are a few tips. It's not about talent. Talent can be good, but it also prevents you from learning, because sometimes you make a good drawing, but you have no idea why it looks good, so you can't replicate the effect. This makes it harder to learn techniques. So, if your art looks a bit off, try finding out why. Then avoid making the mistake again somewhere else.