How do I cope with feeling helpless against nature as a farmer?

You are learning the deep lesson of your work: you tend living things, you do not command them. That is real progress. But the helplessness still grinds, because you pour yourself into the land and the weather can undo it anyway. Caring that much and controlling so little is one of the hardest tensions a person can hold, and you are holding it every season. The old thinkers had a clear frame for this. Some things are up to you, and some are not, and peace comes from knowing which is which. Your effort, your attention, your timing, your care of the soil, those are yours. The rain, the frost, the market, those never were. The grinding feeling usually comes from your mind still fighting for control over the second list. Setting it down is not giving up. It is aiming your strength where it can actually work. When the helplessness rises, name what you did well this season out loud, the choices that were truly yours. Then say plainly that the weather was not one of them, and let it go for the night. You are not responsible for the sky. You are responsible for how you meet it. Do that, and the grinding slowly softens into a hard-won kind of calm.