anyway psys can deal a lot of damage but even watching other people's 1v1s (especially if it's videos of other servers where gear, charm use, pots and such are different) you can't see how you will end up playing.
If you want to learn about psys in 1v1, you could try 1v1ing them or asking about it - this isn't the first thread about psy 1v1, so searching this forum might help too.
Just don't camp white.