College anxiety

Im a freshman in college right now and I finally got the first week of classes out of the way but Im still anxious! Most of my classes are lecture halls so nobody really knows/talks to each other and Im also a commuting student so its very easy for me to go to class and come straight home ! I have a few upperclassman friends so I know some people but since theyre upperclassman I dont have any classes with them, luckily we all have a lunch break together lol . Basically what Im asking is , is it normal to feel anxious freshman year ?