That old feeling when you start a new job...

I start a new job tomorrow (well technically today in about 10 hours) and I have to say I have never felt so calm and yet so secretly scared in my life. I haven't had a proper job in a bit over 2 years. I left my older job in hopes of trying something new but it didnt work out as planed and now I need money. I had the interview for this new position about a month ago and it actually went quite well in my opinion, but didnt here back from them so I assumed I didnt make an impression, and then lo and behold, I get a phone call last week asking if I was still interested in working for them. Of course I said yes. But Im very SCARED and unusually calm at the same time. Its a bit confusing. Im really really hoping my anxiety calms the heck down and it all goes well. Im fighting to get out of my comfort zone, but I wont lie, its hard. But I have to stay positive. Who knows,it might end up being fun...I doubt it but you never know.