Yes. I was an RN before PA school so I was fortunate to do some suturing before I got into school. I practiced a lot. My first real job interview involved suturing a trauma victim’s ear. The doc was impressed with my skill and hired me on the spot!
I'm neither a Pre-Med or a Medical School student but I agree with Janette's point, it'll be great if you practice as you will have prior knowledge during the actual course, as a result you'll be able to perfect it easily