Certainly you can quit, you would have to end all your listings. You have something with a bid, so you will probably be charged the final value fee if you cancel that listing. You do have recent sales, so you need to keep signing on until the delivery is confirmed for all those sales and your buyers are satisfied. As long as you don't pay for a monthly store, then once you end all your listing, you can just walk away. Leave the account inactive until you decide to use it again. However, why do you want to quit? You have such a good start going.
