Which country are you in? Not all countries have the same wiring colours (colors) - if you are unable to recognise which conductor is the Earth wire and where it should go perhaps you should ask a certified person to make the repair. Damaging the switch should be the least of your concerns
My guess is that the wire with the eyelet is the Earth wire and may well be Green or Green and Yellow but this is playing fast and loose with your life. TAKE CARE and TAKE ADVICE
Lord Finchley tried to mend the Electric Light
Himself. It struck him dead: And serve him right!
It is the business of the wealthy man
To give employment to the artisan.
Peccavi, October 2008