Wavy Hair I Love But I Need Help With It?

I have frizzy dry hair!:/ so everytime I try to do wavy hair on me it turns out to be very puffy and I hate it. I was thinking can I straighten out my hair two days or one before I do the wavy hair? That way it won't be puffy or is just a bad idea! Please help me I have a party to attend on 4th of july and I want my hair wavy(: