Apply complete fertilizer after new growth begins, then again after the first harvest. Spread organic mulch around plants to help keep the soil moist between watering. To get maximum berry production, pinch off the first flush of flowers so plants can direct energy into establishing a strong root system. You'll still get fruit the first year just later. Early disbudding may help eliminate the monkey-faced berries that sometimes show up with the year's earliest crop.
Diseases build up in the plants over the years, causing fruit production to drop gradually.
That's why commercial growers usually replace everbearing strawberry plants every year or two. Then pull the older plants out, leaving the daughter plants produced by the runners. If you follow this pattern, you'll never have any plant more than 2 years old in the garden, and you'll always have new, vigorous plants starting up.