first day at new job tomorrow

ugh I'm so nervous I can't sleep. I left my last job about two months ago because of a conflict with another employee but I had loved that job so much and I'm just extra worried because of that. I'm nervous this job won't have the same friendly family vibe between co-workers. both are fast food places but every where is different so I am nervous. I was hired as cashier even though I told them I was much more comfortable in the kitchen so that's got me worried, I did both before but loved the kitchen and was better at it. I'm also super shy when first meeting people. I have to sleep but I'm so anxious and nervous I can't. ugh I hate this lol