help i have a crazy boss who thinks im out to get her?

i just moved to a different department... same job new team and boss. since i got there shes tried to control everything i do... i mean down to... to tape or lick my envelopes. (she says tapes too expensive.) ... well a couple of weeks ago i asked her if i could close my register 30 minutes earlier than normal, cuz i get really stessed out, trying to do a deposit in such a short time frame. she just said NO. not even giving an explanation. so i just let it go... until one day nobody did a deposit the previous day and i knew it was gonna be huge... so i asked someone else (becuz she was on break) to close me out early. he did ... she got her feelings hurt and now we have a huge meeting on tuesday... about the rules of my job... i went to her and explained myself, that i was just stressed about the amount of money and lack of time... that i wasnt trying to be malicious... but in hindsite i can see why shed feel that way... what am i supposed to do she still thinks im out to get her??