What should I do

I'm going to be a freshman in college this year and so I have never not warn a uniform before and I went to an all girls school so we never did are hair or make up. I'm wondering what I should ware for the first day of school like can I wear jean shirts and a shirt or should I wear s casual dress should I wear make up because thTs what people do but I don't like wearing make up all the time I like to wear it becose it's fun not because I feel like I'm ugly and have to wear it and I also must of the time like to wear my hair down and natural wich is a little wavy and somtimes a little frizzy I just don't know what I should do for the first day or first week or even the whole year