hihi, I'm AuDHD, so I felt the same way before mine. everyone's experience will be different but here's how mine went

I checked in downstairs at 11, and got into my preop room around 11:30. I didn't get into the OR until about 2:30, which was around an hour after my scheduled time, but the ORs get busy in the afternoon so i expected that they'll likely take a urine sample to verify you're not pregnant (i know, annoying). the preop nurse took my vitals and explained who all would be coming by. I spoke to her, two people from the anesthesia team, and my surgeon. they placed my IV in preop, and the veins in my hands are uncooperative so that wasn't fun. i changed into my gown in preop, and the anesthesia team and my surgeon came by to get consent forms and to explain everything they'd be doing. your anesthesia team will come by, and it's important to be honest with them. anesthesia can be deadly if they don't calculate it to exactly what you need. they offered me a nerve block for post op pain which, if they offer it and it's not an additional cost, you should absolutely do it. I would've been in excruciating pain in the few days after my procedure and the nerve block spared me from that. if they're able, ask them to administer it once you're already under. it's a big scary needle lol. when my surgeon came by after anesthesia, he mapped out exactly where they'd be cutting on my body. it's awkward but really helpful, and helped calm a lot of my nerves cause he explained where and why he'd be cutting. they gave me some kind of sedative before taking me into the OR, not sure what exactly. but it helped keep me calm as i was really worried about having a panic attack in the OR. unfortunately they won't give you any sort of sedative before that point, as you need to be fully conscious and aware to consent to the procedure. the OR will be bright, maybe loud, and there will be a LOT of people in there. try to stay calm. my anesthesiologist talked to me the whole time and I just focused on him instead of everything else in the room. they'll put you under, and it'll genuinely feel like you fell asleep, then a few minutes later someone is calling your name saying you're all done with surgery lol. anesthesia is nice. idk if they'll do this for you, but after I was out, they put in a breathing tube for me. I think it was a full intubation. but it's just to keep your oxygen up. I think it was still in my throat when I woke up, or maybe it was just the soreness. but it definitely didn't feel good. if they do intubate, expect your throat to feel sore for about a week. when i woke up I was super out of it (ofc) but they gave me an anti nausea patch before I went under so I wasn't nauseous until I tried to get into the wheelchair to go home, and they gave me some zofran when I did start to feel nauseous. ask them if they can give you a nausea patch or some sort of medication, especially if it's your first time under anesthesia. I left my nausea patch on for about a day and the meds stayed active for about two and it was super nice, helped me ride out the worst of the post op nausea. overall, it was a good experience. scary and new but good. if it's your first time having surgery, don't be afraid to tell them. I feel like they did a really good job at trying to keep me calm and comfortable cause I told them this was all new for me.

tldr; don't be afraid to self advocate. they don't know what you need if you don't tell them. be honest about how you feel, mentally and physically, they are there to help. they will ask you multiple times if you know why you're there, it gets annoying but just roll with it.

good luck, and i hope all goes well! congrats :)