That is just so wrong mate ,it's factually wrong and it's the wrong attitude to have . The therapies and treatments have been tested and defined over a long time with a lot of people ,they 99 times out of a hundred know what they are doing ,you may think only you knows about you ,but your ailments arnt unique ,millions of people have been through what your going through ,and the mental health service has seen and helped a lot of them .
Go to them with a bit of humility ,assume they know what they're doing ,don't scoff at ideas ,suggestions or treatments that sound silly to you ,be willing