The minute you think you know enough to stop actively learning, you've gone stale. Keep pushing yourself to learn new things, to stay on the cutting edge of your industry, to be topical and prove yourself an asset. Invest in the future and in yourself. And make sure to diversify. Don't put all your eggs or skills in one basket. Spread yourself wide enough to always have a variety of options and avenues open to you to keep moving forward with your dreams.