Tutor me in setting up campaign and groups in google shopping

I have a merch accotun and ad account linked and my first campaign set up which is working well. so my account is in good shape but I do not know how to make the changes I want to make such as only promote hot selling items and ignore slow selling items. I want someone to spend an hour with me using a screen share to how me where to go to sort the campaigns and groups out. Note this is for google shopping, not google ads