Pick up a pencil
IT'S REALLY THAT SIMPLE
I keep on seeing these big blogs on tumblr that list something like 18 tip on how to be an artist which always seem 'feel good', 'super critical' or 'horribly contradictory'. When your looking for art tips just remember that artists (and people) can only really talk from personal experience so get tips from a wide variety of sources. People are going to tell you different things, a lot of it's going to be bullshit but sometimes there's nuggets of golden wisdom. How do you sort out the wisdom from the poo? Experience! If I ever have any general tips for people it's 'practice, practice, practice!' If you don't know what to draw just copy a photo or go outside and draw a.... tree?!
Oh and one more thing, if you decide to try writing because your bad at drawing just remember writing's also a skill and it requires the same amount of practice. To be honest it's probably more of a skill than drawing. If you want to write it should be because you love writing and not because you can't draw.