Do it in small, safe ways that are wise, but never give up. Cultivate an environment that accepts innovation . Reward your people and yourself when you make good attempts, not just when you succeed. Jack Welch has fostered this attitude at GE and had enormous success. Redefine succeeding as the successful completion of idea development for a worthwhile cause.
Innovation only happens in an environment where it is receptive.
The environment there doesn't foster innovation or reward risk takers. Hey, Sparky, life is a risk. And yes, we sometimes fail. However, going for security ultimately gives us neither security or prosperity, as Benjamin Franklin pointed out so well years ago. Live with risk and enjoy it.