When you get bigger, your metabolism also adapts, potentially raising your TDEE. If you've stopped gaining weight (or muscle), consider slightly increasing your caloric surplus (e.g., by another 100-200 calories per day). Conversely, if you're gaining fat too quickly, slightly reduce your surplus. Track and adjust based on your body's response over 1-2 weeks.
How do you adjust your intake when hitting a plateau?"The body adapts; your strategy must adapt too."