People think they are bad at clutches because their aim sucks, while your enemy having better aim than you definitely contributes to losing a clutch, game sense is more important. If you are trying to clutch, especially a 1v1 here are some tips:

-Hold shift as much as possible, the less info your opponent has the higher of an advantage you have

-If you are going to fake plant or fake defuse dont immediately make a footstep noise or they will realize. I see this literally every game.

These are really the main two points. Just stop making so much noise and giving your enemy your exact location, i see this time and time again in literally every fps, not just Valorant.