Challenges you face today should be met and not avoided, as the experience can make you much stronger.
Do not shy away from challenges today out of fear of failure, but see them as something that will make you stronger. Whether you succeed or not is not necessarily the important thing, as you can learn so much from the journey and from trying. In fact, failing can often be a good thing as you learn lessons and it makes you a stronger, more resilient person. Find your energy.