One danger of thinking is that your thoughts may be rejected or you may later find out what you thinking was wrong or simply illogical. Sure, you can quote NPR or John Stewart and sound pithy and smart, but is that thinking? Not so much.
Consider exercising your ability to think by deliberately presenting an illogical argument. Allow others to disagree and present evidence to that contradicts the points you make. Listen to what others say, accept that which makes sense to you and reframe your original argument. You'll find that rejection and disagreement are not such a big deal.
Not only does this exercise help you think, it reinforces your ability to create conflict in what you write. Another benefit is that when others comment on your written work, you can better assimilate the feedback that works for you. Or not.