Without getting overly metaphorical, the best way to answer this is by saying that taking a chance is the literal only way to improve.
Taking chances is what gives us results, and results are what moves us forward in life, chances give us opportunities to better ourselves, and even if the attempt fails, you can learn from your mistake and take that chance again.
1.-A. A trip to the ocean can be a relaxing escape from the everyday pressures of life.1.-B. You should always be careful to avoid overexposure to the sun at the beach.