Get the basics of Monstera care right. The 2 most important things you can do for your Montera is to pot it in a high-quality potting soil and to keep it in medium to bright indirect light. Cover these bases and witness your room turning into a jungle. What's high-quality potting soil you ask?
Does it look like your houseplant isn't growing as fast as it uses to? It might be that it needs repotting. More room for the roots to expand and fresh potting soil will give your green friend the energy it needs to grow bigger.