Itāll get better, Scout. I had the same when I got my Siamese - set her up in the kitchen to get her settled in and she stayed in her cat carrier refusing to budge for the majority of the first day. Just left her to it and waited for her to be brave enough to approach. I even took to sleeping on the couch for the first two nights so she could get used to me being there and so she wouldnāt feel alone - during those first two nights, she would creep in the living room, rigidly sticking to walking along by the skirting - any slight movement from me towards her and sheād scuttle off back to the carrier.
It was only by chance that on the third day, I walked into the kitchen as she was coming out and she accidentally brushed against my leg - hey presto, instant āoh, youāre actually alright, I quite like you nowā and instant purring. And now here we areā¦
Hang in there, Iām 99% sure itās a case of Siamese gonna Siamese. My other two just started bossing the place the second the door came off the carrier. Youāll both be fine.