Most likely, it isn't ready yet. Homemade vanilla has a higher alcohol content than store-bought vanilla. Many store-bought vanillas are made with water blended with vanilla bean extractives and other ingredients. So when you taste your homemade vanilla extract, you're tasting a bit more alcohol than the store-bought kind. That's why it's important to allow your homemade vanilla to sit and extract that vanilla flavor from the beans for at least 3 months. The vanilla flavor will come through and mellow out the alcohol taste. Also, remember that any alcohol flavor will evaporate out in your baking!