Guard your heart ferociously. You heart is like a flower. Every time you "give your heart away" (let your self have an emotional connection to someone who is not your wife) you give away one of those petals. Soon your heart has been broken so many times (even if you did not actually have a "break-up") that you have nothing left to give. Give your future to Jesus, and trust him to guide you to the right young woman. Let me have your affections until the time you transfer it to another. You are safe with me. I only want the very best for you. And I too will trust the LORD to guide you where you should go.
Always sleep on a decision. If it is a "once-in-a-lifetime offer only good today", you're better off passing it up than to jump at the offer only to find you've been taken in. Anything worth having, is worth waiting for. Make this your policy and you will always have an "out" for any sales pitch. And who knows, the offer may look quite different by the morning's light. (This advice was passed down from your Great-Great-Grandfather Maurice Artman, 1900-1982).
Do not confuse arrogance with confidence. Confidence is an assured feeling regarding what you are factually and experientially capable of. Arrogance is a disregard for any fact. A unabashed lifting of ones self in an attempt to impress others regardless of what they would think if they knew the truth. Confidence has it's limits; arrogance does not. Confidence is an important component to a healthy life; arrogance is a pit many fall into and few find their way back from.