Proverbs 28;26; He who trust in his own heart is a fool, but whoever walks wisely will be delivered.
It is easy to get carried away by the things happening in the World now, it easy to trust your knowledge and understanding and to rely on yourself to get things done or to reach your destination but the question you should ask yourself is do you even trust yourself to leave yourself to yourself. Trusting your own heart can get you into the wrong crowd and do the wrong things so easily that it will be unwise to leave things to yourself.
This is why it important that you leave everything to God to guide you into the future. He is the alpha and Omega and knows the end from the beginning, he is the only who cannot be swayed by worldly happenings or the whims and caprices of the devil. Leaving your future in the hands of the creator himself will surely get you there and lead you into success. So then it is important that you learn to trust the Lord and to build your confidence in him.
Trust in the Lord rather than your heart, do not be overconfident in you may have come know or acquired for you are still human. Our sole focus and confidence should be in the Lord. So leave everything to him and he will get you to your destination. Have a wonderful week ahead.