For clutch in cs2 you need:
just need to work on comms, aim, map awareness, crosshair placement, economy management, pistol aim, awp flicks, grenade spots, smoke spots, pop flashes, positioning, bomb plant positions, retake ability, bunny hopping, spray control and getting kills

To carry, you need:
1) Energy for focus
2) Low DPI for precise control
3) Crosshair placement and checking angles
4) Confidence, regardless of what the scoreboard (TAB) says