I’m so worried

So my daughter is having a procedure done in the hospital that requires anesthesia and I’m so worried. The procedure is simple she won’t wake up in pain or anything like that but I’m worried bc she doesn’t like drs or going to the dr! She was was sick at 18 months and had to be hospitalized and I’m pretty sure she was traumatized so now she’s 3 and she’s just barely starting to warm up to her own pediatrician. So yea it’s gonna be tough! She will probably cry and fight them off till they put her under. I tried explaining to her that we’re going to the drs and they are going to take her for a bit to another room and she seemed worried and said no mom You stay with me 😥 on top of that she can’t eat after midnight and her procedure doesn’t start till 1:30 the next day 😭 she’s gonna be starving and thirsty . I tried getting it moved but had no luck but My main concern is her not waking up from the anesthesia I’m torturing myself thinking all these thoughts. Any positive vibes welcome or idk suggestions on how to keep calm