“I keep playing good against weaker teams and disappearing against better teams.”

Better competition exposes what is not automatic yet. Against weaker teams you have extra time. Against better teams, the window closes faster. That does not mean you cannot play. It means your decisions need to be cleaner. Watch film from the tougher games. Find the first moment you rushed. Was it the catch. The first dribble. The pass. The shot. Then practice that exact moment faster than comfort. Catch and decide. One dribble and decide. Pressure and decide. The next level is not magic. It is the same game with less time to lie to yourself.