Natural hair?

Most of the time I have to either straighten, curl, or throw my hair up into a messy bun. When I wake up my hair is naturally "medusa" meaning that it sticks up everywhere and is knotted and even if I brush it just looks the same. I was wondering how I could "tame the beast" and wear it natural because straighting it takes a lot of time and then I have to do other stuff to it and using heat all the time on my hair isn't healthy so are there any suggestions on how to control to wear I can wear it natural This is a picture on one of my better days​