Here is an example capx.
For more explanations of how it works, I strongly suggests you take the time to look through the items listed in the "how do I FAQ" (category "Arrays").
It takes time, but it's doable.
And taking the "I'm an artist" excuse is no excuse imo (I'm originally an artist too, it took me years to understand how arrays work too, but if you're serious about making games, it is a tool you absolutely need.)
Abstraction is not a domain reserved to mathematician, I'd even dare on the opposite I'd expect artists to even behave better in that matter.
Maths like art are craft which requires practice and effort. Being more at ease in one doesn't mean you can't get "good" in both. It just means it takes perhaps more effort, but it is doable.