Gardevoir ex deck help (modified)

[Misdreavus]

Please help with this deck. I can't seem to get anything I want with it... my friend uses almost the same deck and he gets everything he wants when he wants it...

Pokémon (17):
4x Ralts (Confuse Ray)
2x Kirlia (Life Drain)
2x Gardevoir
2x Gardevoir ex
3x Duskull (Confuse Ray)
2x Dusclops
2x Chansey (Aquapolis) - staller

Trainers (24):
4x Moo-Moo Milk
3x Copycat
3x Oak's Research
3x Elm's Training Method
3x Rare Candy
3x Switch
2x Forest Guardian
2x Root Fossil - a good thing to Psy Shadow
1x Town Voulenteers

Energies (19):
19x Psychic