Watching other people fail and, more important, watching other people succeed and learning from those success and failure is almost always free. But if you dismiss a success as just luck then you are rejecting the free gift that comes with purchase.
This is the paradox of life: you usually have to fail utterly and completely in order to succeed. Success, it turns out, is an inside job. You can pretend it's not, but in the end you will fall flat on your face.