Ever had a sin that was SUPER tough to beat, maybe UNBEATABLE? Wait! Even though Goliath was MUCH bigger, more imposing, and super tough, David did not concoct some "special Goliath plan." To do so would actually be to honor the enemy. Nope! All sins are to be understood and processed through David's simple logic with Goliath: Dishonor to God. Affront to God. It must die; cut its head off.
Don't elevate sin's power by making is some super-special thing. God says it's nothing but what's common to man, and He provides a way of escape. When stuff is really clobbering us, we want to make excuses not to fight it, just like people would try to not fight Goliath. "It's too hard to beat. I'm not ready. I don't have the tools."
Don't do that. Knocking out the big ones does something special. You see, after David lopped Goliath's head off, "the Philistines saw that their champion was dead and they fled." (1 Sam 17) So take on that Hulk of a sin in your life and realize how empowered that conquering it will make you! Knock out the big ones and the rest will start toppling like dominoes.