Stuck on growing a pineapple

What part are you stuck on? Rooting it is the step most people get wrong. Twist the top off a ripe pineapple, pull off the bottom few rows of leaves so there's an inch or so of bare stem, and let it dry for a few days so the cut end doesn't rot. Then either stand it in water till roots show or plant it straight into a fast-draining mix. Bright light, warm, water sparingly. Be patient though, it usually takes two to three years before it flowers and fruits.