If its anything like Fine Art A-Level - you are going to find it very tough. If you don't keep up with yourself and once you begin to see yourself falling behind, no matter what you do, it will get ahead of you and with other subjects it becomes very stressful.
It is a giant amount of work which personally, I think is so stupid compared to any other subject. I am very good at managing my time but it get ridiculous as there becomes a point where you don't know if you have done enough work so you just drive to do as much as you can. ALL YEAR.
Generally, the majority of people who seem to do well are those who wish to pursue a creative career so are obviously more driven to make the work as opposed to seeing it as a gap fill to complete the A-Level.
(Speaking from experience this year as I just completed A2 Fine Art)