Neighbor was murdered, heard everything. Sent me into acute stress disorder, turned into ptsd. Couldnt afford to move out of the apartment I'm in so it has been 4 months of mental hell living here. Her murder happened at 2:30am so being asleep at night was basically impossible for me. 

But I redecorated my room top to bottom, bought new furniture, got security cameras, security bars for my doors, door chimes, backup door handle jingles, sleep with my rifle in my bed, and have been exercising and getting sunshine daily for 2 months. Finally a couple weeks ago i switched around my sleep schedule and ive been getting sleep at night ever since. It's not the most restful, i find myself waking up once or twice every night, but it definitely is way better off than I was before. 

If anyone else is reading this and finds themselves in a similar situation, there is definitely hope. You might spiral down an existential pit, briefly lose hope for humanity, but i really really suggest getting out into nature and getting that serotonin you desperately need from the sunshine. Its so important and vital to being human. It does get better, please dont give up on life.