Sparked by some guy afraid of making the switch away from a certain game engine, to learn a new one.
You shouldn’t be afraid of trying out new things. Whether it’s a new way to study, a different approach to that mathematical problem you’ve being trying to solve, or hell, even an alternative way to cook that delicious meal. Whatever it is, it is very well possible that trying something new will yield interesting new results, which will sometimes even be better than the way you’re currently doing things.
“But what if it goes wrong?” That’s the problem, right there. Not that things may potentially not go as well as you’d hoped, but that you’re asking that question. There’s fear of the unknown there. That sounds kind of deep, let me rephrase that. You’re afraid of trying things of which the exact outcome you do not know. There, much better.
Sure, thinking things over never hurts, but you shouldn’t overdo it. If anything, you’ll just find a way that doesn’t work very well, and so you can put that on your list of things not to do. You’ll always gain something from it. And hey, new experiences are bound to be fun, right?
I know I’m oversimplifying things here, not taking special situations into account, but I think this goes in most cases.