I do GCSE Art as my 3rd option meaning I have to do it once a week after school for 1:30 hr. You definitely don't have to be extremely good at it but I guess a creative mind would help. Material wise I use anything that works the best. Mainly simple things like oil pastels, water colour, chalk, acrylic, ink, etc. In art experimenting with different materials get you more marks so you don't have to be afraid of doing so. If you feel like its not something you'd do at college or maybe there is another option that you are interested in then do consider them. In art you have different topics after few months, you are allowed to explore as much as you want around that topic. For example, my first topic was surrealism and I had to choose 2 artists for it and draw from their works. It's not that time consuming...I usually use my free time or saturdays to finish my work.
Not sure if I wrote too much but hope it helped!
Good luck deciding!