If you are severely depressed or suicidal then you definately need help and support by way of medication/drugs.
However all drugs have to be processed by the liver and when you have candida the liver is already under enormous pressure so taking drugs will only add to the toxic load. I have been down the SSRI route and yes they do help lift the mood anxiety and Depression but they didnt do my liver any favours. If you concentrate on cleansing/detoxing your liver and other organs etc you will probably find that your anxiety and Depression will lift. The die-off is tough and can even exacerbate your Depression - that is tough but if you stick to it you can come through it.