You should not need to replace kitchen knives often, if at all. It is crucial to know how to store knives and take proper care of them. This means using them for their right usage and noting when they need to be sharpened and honed. If you have high-quality knife, then it will not need to be replaced.
You can sharpen your dull knife by using a whetstone or electric sharpener, but if you don’t feel comfortable using either, then you can send your knives to a professional or a local hardware store.
Honing your knives doesn’t actually sharpen them, it just keeps your sharp knives sharp. Before using your knives, it is good practice to run your knife along a honing steel, as this will keep your knife blade sharper for a longer period of time.
And lastly, make sure you’re using the right knife for the right job. If you have taken the time to curate your knife collection, then you should have a knife for specific jobs. A paring knife is not meant to break down a chicken and a chef knife isn’t best for slicing bread. In addition, using your knife for the right job will increase overall knife safety in the kitchen. 