And all the men of Israel, when they saw [Goliath], fled from him and were dreadfully afraid. -- 1 Sam 17:24
So it was, when [Goliath] arose and came and drew near to meet David, that David hurried and ran toward the army to meet [Goliath]. -- 1 Sam 17:48
So which way are you running in regard to your giant? Like the soldiers, away? Or like the young shepherd, toward?
The defining characteristic of a giant-killer is not whether you're a trained soldier, because David wasn't. Rather, it's the action you take; the direction you run... Whether you run from your giant, or run toward your giant.
So which way have you been running?
If you've been dreadfully afraid, running away from your giant, your time has come to turn and run toward it. It's not a matter of the head, it's a matter of the heart. God is with you, and will deliver that giant into your hand. Don't put it off any longer! Run toward your giant, giant-killer!