Hi Gyaltsen Tashi,
In the short term you need to be stabilized by a Clinical Psychologist probably using medications and in the long term you need ongoing therapy to talk to someone. It seems your doctor has already refered you to specialists and you have a diagnosis. It basically is no good to seek the wrong tools for any job, ie: people on a forum who do not have any personal physical close contact with you and can not help you in an essential manner. However it is good that you post here and get messages of support from your brothers and sisters who are more experienced in either having depressions and conditions or are therapists in various modes or are just kind loving hearts as we see from messages all over this thread and forum. So do continue to post about it but also treat the root cause by going into the essence of the problem. All the obstacles you imagine in going to ask your psychologist for help are false illusions. Go and talk to him/her as soon as possible and seek immediate help. In the medium term if you are not happy change the psychologist and/or the therapist. Take things one day at a time. You don't have to plan and problem-solve the long term now. Things are always in flux and most contingency plans self cancel. So don't worry and just deal with any current day or even moment when down. Don't have unfounded false guilt trips about missing practice or anything else as I said before. You are pure so don't give yourself an unnecessary hard time regularly. Things get dark and then they get better and all over again. This is true for everyone to varying degrees. It will pass. I have heard that a suicide is so gross that 500 future lifetimes, immediate or close, end up in bad situations. Also know that many have been through your disease and have overcome it. Medical science is always progressing too. It might be cloudy for a few days but that is not going to last for ever and things always change. Keep us posted about things specially visiting the psychologist. With love.
Dzogchen masters I know say: 1)Buddhist religion essence is Dzogchen 2)Religions are positive by intent/fruit 3)Any method's OK unless: breaking Dzogchen vows, mixed as syncretic (Milanese Soup) 4)Don't join mandalas of opponents of Dalai Lama/Padmasambhava: False Deity inventors by encouraging victims 5)Don't debate Ati with others 6)Don't discuss Ati practices online 7) A master told his old disciple: no one's to discuss his teaching with some others on a former forum nor mention him. Publicity's OK, questions are asked from masters/set teachers in person/email/non-public forums~Best wishes