Hang in there-- it's rough-- especially the 1st 6 months. Whenever you come from being an expert in one specialty and being at the top of the ladder it's a big blow to come down to the bottom rung as a CA-1 and get yelled at for not taping the ETT right, the way you intubate, the way you put in lines, not being fast enough, etc. etc.-- and anesthesia is unique in that the learning curve is SO steep the first six months- nothing prepares you for the logistics of performing an anesthetic, the anesthesia machine, the surgeons, so many people to deal with to make a case run smoothly from start to finish. Particularly hard when you come from a specialty that was focused on details, taking your time, and lots of discussion about things (as I did in pediatrics).
Now that I've substantiated how you're feeling, I wish I had better advice. But all I can say is go with the flow and tune out the rude malignant people. They suck. They probably are intimidated by you. Just keep thinking in your head how well-prepared you are to take care of your patients from a medicine standpoint and work on showing everyone how proficient you are at using that knowledge to perform a good anesthetic. In the end, if you show humility and a willingness to learn, you'll come out on top. When they yell at you about stupid stuff, just nod and smile or say ok and move on- I used to get argumentative but quickly realized that didn't help. Be nice to the nurses, treat your attendings/fellows like they have something to offer you, and get through the end of January and you'll be golden. Many people have been there. 😳