As a short-term measure, I do reccomend a call to The Samaritans.
The lack of vision and voice-only contact will enable you to sday exactl;y what you want to say.
Their volunteers are trained to be patient, so slilences are no problem, and ytou don;t have to try and 'make conversartion'. Sometimes just having contact with a non-judgemental stranger can be very theraputic.
I know - I was a Samaritan for three years, and I have a complete breakdown twenrty years ago, and was hospitalised, and take medication for ever, so I speak from both sides.
Do post here if you need to - I think the Ed is very patient with these situations, and there are people on here who can understand and support you.
Hope this helps.
A x