Transition from Holy to Retribution

Hello !
I have some questions about the transition from Holy to Ret, i'm actually raiding as Holy but i'm not enjoying the role of a healer. I mean i like the fact that i'm toping the healing meter but, it's not what i enjoy the most.
I'm here to experience vanilla content and enjoy my time not to play a spec' that make me a bit sad, but in the meantime i don't want let down the guild that helped me gearing up, and actually i spent a lot of money and TIME on gearing my self enchanting every piece of gear, i was motivated but as it turned out healing is not for me.
So i'm here to ask how can i switch from Holy to Ret, is it a good idea ? is gearing up from scratch a Ret is hard and cost a lot of money and take a lot of time ? Can i still be usefull in a raid environement ? or should i just switch to another class ?
I have some questions about the transition from Holy to Ret, i'm actually raiding as Holy but i'm not enjoying the role of a healer. I mean i like the fact that i'm toping the healing meter but, it's not what i enjoy the most.
I'm here to experience vanilla content and enjoy my time not to play a spec' that make me a bit sad, but in the meantime i don't want let down the guild that helped me gearing up, and actually i spent a lot of money and TIME on gearing my self enchanting every piece of gear, i was motivated but as it turned out healing is not for me.
So i'm here to ask how can i switch from Holy to Ret, is it a good idea ? is gearing up from scratch a Ret is hard and cost a lot of money and take a lot of time ? Can i still be usefull in a raid environement ? or should i just switch to another class ?