Should I learn to play guitar or Martial Arts?

I have always loved the way the guitar sounds and have always been interested in it. Im just wondering if I should learn martial arts since people in the past say I would be a great fighter. Plus I love fighting, its a great way to stay in shape and relieve stress. I just don't know because I want to do both. The problem with that though is that my schedule already pretty full and can only fit in one. I asked my parents but they just say "Do whatever one that will make you happy." Which is nice of them but not helpful. So will someone help please?