2016 almost killed me too.
My father, a healthy & happy psychologist retiring to the new cottage he had just finished building for my family started experiencing acute episodes of anxiety and illogical paranoia in Mid-Summer. He saw a therapist and started on a powerful anti-anxiety med. It was a misdiagnosis because he committed suicide a few weeks after starting the pills, had reported he wasn't suicidal before starting them, and left no note. I had booked a fight home to check on him and was 36 hours too late.
Probably a form of hard to diagnose early Alzheimer's, but I'll never know because he shot himself in the head. I've had 3 uncles, a cousin, and my dad committ suicide, could be a genetic thing. Worries me about my future a bit.
I scrubbed what was left of him off our the back deck we built together, then 5 days later went under the deck to get the hose to water my mother's flowers before the funeral and had to shovel a big maggot filled puddle, containing the contents of his skull that had run through the deck planks, into a bucket and bury it behind the house.
After the funeral I ignored my girlfriend who was taking a second chance with me too much as I dealt with the estate and coming back to working a 100 hour a week job. I had my grandmother's engagement ring made into a necklace to give to her for X-mas to show her I intended to propose to her in 2017 but never got the chance because she dumped me a week before. Kicker... she works on the tv show with me so I'll be seeing her too much soon and it's become clear I also need to find a new job now.
I was totally overwhelmed come Christmas - New Years up till a few days ago. Couldn't make it ten seconds without my mind going to a very dark place, grinding my teeth at night, lost 12 lbs and I'm a skinny guy. I might have killed myself if my mother and siblings weren't already grieving my dad's suicide.
Only thing that has helped is diving head first into trying to break into a new career and planning on moving to new city. You don't like your job and you think the people around you are making fun of you? It can't be worth the money so start planning your way out now. Make a budget based on your salary and see how long it will take to save up and leave, there's a tangiable escape you can hold on to when feeling hopeless.
Find a new city, very hard I know but the effort will keep you occupied and you will at least understand why things are hard. The people won't have a opinion of you so you can start fresh and you won't see the daily depressing reminders of your situation that you do now.
And talk to a shrink. It'll help.