Hair help needed!!!

So this was my hair like 3 months ago. It’s about 2 inches longer now and is generally a lot more frizzy. It also happens to be very, very thick. I have this thing at school on Friday where we have to dress professionally. The thing is I don’t know what hairstyles I can do that would look professional. I don’t have time in the morning to do an apdo because that would take at least an hour. I usually like to leave my hair down or do a half-up-half-down hairstyle, but I feel like neither of those would look professional with my hair. I’m good at doing braids, but I don’t like them. What are some good hairstyles that I could do???