I've taken up the practice of journalling my thoughts recently, and it's probably the best decision I've ever made with regards to my intellectual development. I make sure to do it at least 10 minutes each day, and it's been amazing.
I had an aversion to writing from school-mandated essays on pointless nonsense, But the real problem was the stupid topics, not the writing itself! Writing is great, writing is fun, as long as I have something to write about!