Yes I have had a similar experience, that was the exact position I was in when I joined here hence the username - a snapshot of that time. I met someone that was broke like me in what was temporary accommodation. We have since moved out and live together, the depression is mostly gone thanks to medication and my financial situation has improved. I still have no friends; the depression helped wreck any friendships I had and there is nobody left. There isn't much job security or tenure anywhere anymore so I need to carefully plan what next.

I have only got one suggestion for you: get the depression treated as best you can as soon as you can. Focus on improving your mental health and not on the sort of story the depression is telling you. That story may have some truth in it but it won't be as strong when you are well. I have always found my circumstances improved after I got out of depression. I think us depressives need to be reminded that the story is just a story and those thoughts of loneliness and sadness are just symptoms of the depression.