I have this problem, too
I had been trying to grow my hair layers out, but the longer they got, the flatter my hair looked. I went ahead & cut some layers into it about a month ago, & it's done wonders for me
I also use Abba Weightless Gel every single day just in the top/front area (like medusahair does). I don't use clips, but I do slide my fingers against my scalp & hold the hair away from the scalp, & diffuse while slightly pulling the hair up (if this makes ANY sense at all), then I do like LavendarCurls with my bangs!!
I've been trying to grow out my old highlights (yikes - what a sight that is!!), & by cutting the layers again, it's getting those out quicker, plus with my long face, I need my hair to be fuller, esp at the sides.