Just end all the listings you have open. They will go on your Unsold List. When you get back from vacation, you can Relist them with a single click.
You will not be refunded for your listing fees.
You will have to pay listing fees when you relist.
And it will be worth every penny to do so.
Sellers with Stores can put their Stores "on vacation", but Stores are not a good idea for inexperienced sellers. Next Christmas...