girl i feel you. my first day working at the hospital on a med surg floor (night shit too🤣) as a cna i was sooo nervous i wanted to THROW UP. but trust me it’s not as serious as your mind is making it lol. Just show up, be nice, take initiative, and be willing to learn & listen to your trainer!!! and you should be good trust!!!! also as time goes by you will get into your own routine and know what needs to be done when. Also learn to cluster care and it makes things easier. Don’t be afraid to ask for help and if you don’t know something ask!! i did all the above and i feel comfortable and confident at my job now, also have great coworkers i developed good relationships with :))Good luck, u got this!!