Sometimes, I'll be in a position where my opponent is threathening to do something and I cannot stop it. So, in response, I play a move that looks pretty dangerous and clever, but which I in fact have not managed to calculate all the way through and I have no idea whether it will work or not.
And I often see that in such situations, the opponent becomes overly paranoid and thinks I've just played some sort of mastermind move, and then they start retreating or playing too defensively or whatever, and I manage to weazel my way out of the situation.
When I then go back and analyze my play with the engine, it will often tell me that my clever move was a complete mistake and my opponent wins by just doing the obvious thing they were about to do.
At what point do these mental tricks, where you make dangerous-looking movies to make your opponent overly paranoid, stop working? I'm thinking there must be some point where players simply become too good to be fooled by that sort of trickery, and just calmly make decisions based on pure calculation.
I currently play in the 1600-1700 range on lichess.