Hi- looking for a bit of advice please. I have long hair down to my boobs, when styled it looks okay, but it's feeling a bit lifeless and flat and heavy. My hair is naturally very very straight, and I tend to wave it or curl it most days. I want it cut to a really sleek bob, but I want to be able to blow dry with a big brush to give it lift at the roofs and some shape. Should I be asking for long layers to do this? All one length? Has anyone else gone from long to bob and not regretted it?