Advice

Okay so I met this guy last year in my French class but like we never talked the closes we’ve ever done was make eye contact. And I just got new classes since I have the block schedule and I thought this semester I wouldn’t have any classes with him but turns out I have health well before this semester I sent him an email and he replied today and now idk what to say because I think I have feelings for him and idk what to do and I’m kinda scared

What do you guys think like what should I say to him or something and btw we have never talked to each other except for this time so what should I do?