If you'd like further help with your mental health you need your GP to refer you to your local community mental health team - under them you'll have a psychiatrist who can recommend the best medication and possibly therapy if that's what you want. Sometimes the waitings lists are long and you can have difficulty accessing certain treatments depending on your postcode but at least you'll be under someone qualified to adequately medicate you - most GP's are not really qualified to dispense pscyhiatric meds. Please join my social group for those in the MH system from the UK, we'd be glad to help you in any way we can:
http://forums.psychcentral.com/group...britannia.html