There is a perennial debate that circulates among authors and those aspiring to become authors. Can you teach good writing? If a person practices hard enough, can they learn how to write, or do they just need to have it 'in their blood'?
Well, it looks like there are those that argue that natural ability is not a requirement. You don't need a 'gift', you just need lots and lots and lots of practice. About 10 years, usually.
So, if you want to do anything, but think you can't because it just doesn't come easy to you...then practice. For another 10 years. And see what happens.