I learned a saying in the Navy, "If you're going to be stupid, you better be strong!" This prophecy came true over and over throughout my military career. A hasty plan, or an unthoughtful approach, would always increase our labor.
2500 years ago an author penned this:
"If an iron axhead is blunt and a workman does not sharpen its edge, he must exert a great deal of effort; so wisdom has the advantage of giving success." - Ecclesiastes 10:10
Make your effort count and gain wisdom. Fearing the Lord is the beginning of discernment and wisdom and our stubbornness will keep us from wisdom.
If you are working really hard but not seeing the benefits of your labor, pray that you will trust in the Lord and ask He provide you wisdom so you prosper. I promise - you will not regret this decision!