I recommend booking an hour since this is your first time. The ideas you mentioned could absolutely be fulfilled in that time. I would communicate those ideas in an email or phone call. The Fortress is superb at pairing you with a Mistress if you don't have one already. My advice is to go slow and let is build organically. Your Domme will go at the pace you set. There are also words you can use to slow down or stop if things get intense. We have all had a first time. Good luck! Life is too short to not experience all it has to offer.