Fishing requires bait on line and fish in water. Be sure to restore your stamina between casts and keep casts short; do this, and you won't have a problem. It's not fast, but fish is a good
ingredient.

I use a pair of mods for farming: One that automatically aligns my planting on a grid and another that allows the hoe to mass harvest and auto-replant. It removes a bunch of the tedium from farm work.