I’ve been given a Dyson Airwrap as a very generous gift and while I really like it, I am completely clueless when it comes to hair. My hair is pretty straight, and seems to have grown a lot in the last few months to mid back, it sometimes has a slight wave if left to dry naturally, and I’ve been using the brush attatchment mostly. I’ve tried the barrels to give a curl or wave but it never stays put. What should I be using on my hair to give it a bit more staying power? I love the volume it gives me but I seem to go from polished to dragged through a hedge within an hour.