You can edit your shopping cart before checkout so you can delete the course or courses you do not want to add to your order. It's very easy, you'll see!
To do this, the first thing you have to do is click on the "Cart" icon.
Once there, click on the X button that appears on the right side of each course to remove the course or courses from your final order.
You will see that as you remove courses from your cart, the total amount of your order will update.
When you have completed editing, click on Checkout and checkout as normal.
If you have a discount code visit the following article to review how to apply it to the final price: I have a discount code, how do I use it?