How Can Severe Depression Be Treated When The Only Medication That Works Is Methylphenidate?

I have tried with great care many kinds of antidepressants, prescribe and bought online. I do not drink or smoke, do not have succestibilty to dependence and avoid tolerence. The only medication that I find works for me is methylphenidate. I take great care with meds, and responsibility. I do not have physical or mental problems, except for long term depression, which I have to Live with, which causes me much unhappiness and social difficulty. After many years or trying various meds, including the current favourite SSRIS. METHYLPHENIDATE is the only med that has been successful. I have no intention of taking large doses, or even consistent dailyl doses. Even though it compares very favourably with contra-indications and interactions, it seems negatively viewed in UK. I have undertaken much research with many meds and do not understand this reluctance in UK, apart from possibility of abuse. Can you help ? Regards Barry YYYY@YYYY