I am sorry for all you have endured, it sounds like you were abused badly for a long time, it is sad that after we escape the ones who would have us feel this way  we impose  punishments upon ourselves at times, reliving , obsessing on things, sometimes I have had to ask God to help me,  tell him your burdens are too great,  you need his help, you can no longer endure your suffering,  give it to God.
I am no go to church on Sunday guy  and  might be the last you'd imagine thinks this way, but  I can tell you it works.
I do not know if it's God or Buddha or Mohammed or Zebulon on planet  poopsilon12, but it works.
I try to stay joined up at a gym that has a pool and a jacuzzi, a steam room and a sauna. 
Even if you never work out with weights  it is like living like a millionaire , it is also  good for you for exercise,  swimming is fun and great exercise,  walking every day, several times a day   is   good for receiving sunlight, meeting neighbors, new friends,.
Facebook has many groups,  some meet up  and do fun things like ride bicycles decorated with lights  and they ride around having fun, a few I saw had electric bikes so you do not have to be in shape  or even able to ride a bike as many 3 wheeler bikes are ridden.  
Bowling is fun,  church can be fun.
My Grandfather told me if we had a crystal ball a fellow might not want to go on.
I have ridden motorcycles 48 years  and lost 7 friends who rode with me, I broke my left femur 5 places 1 was compound,  both wrists were broken, Iwas in the trauma center 5 days before they could operate on my fractured femur, that is the most pain I ever felt  physically  , it hurt for a long time too,
I hada kidney stone a few years ago  and the Dr said this was the most pain a man will ever experience  comparing it to child birth, it is bad  but I said I have had worse, the Dr  looked at me strange  and when I said my femur was broken 5 places  , 1 was compound at my hip  he grimaced  and said well thats usually the most pain the typical  man will ever experience, so I have transcended the pain physically on a level  most  never know.
I was a 50% beneficiary in a $2.3 million cash trust my Grandfather carefully assembled over his lifetime of disciplined saving  and living below his means etc  , his legacy was to pass on a legacy  to us  so we could then  do so  for future generations.
My Sister got into a fight with my Grandmother at age 19  and didn't invite her to her wedding and never set foot in her home ever again, she lives 500 miles away  and was never close to our Grandparents as I was, I ended up being asked to care for her by her to preserve the trust  and avoid a care hoe  I said  yes of course, my Grandmother insisted  that  the truest  remain  50/50   and despite my Sisters abuse  she was not cut out at all even though I was sacrificing my HVAC career at the time I made &0k a year, m share of the trust was enough to insure I avoided impoverishment by being her care giver,  everything was fine for 2 years until 2011 Pradaxa  was prescribed to her  and it killed her but it took 2 years  to do so, during that time she require transfusions and was chronically anemic and had strokes  requiring ICU status of weeks at a time  her care became a 24-7  365  ordeal  with someone I never knew   who  hated me now,  I knew it was the strokes  but  unknown tome she made 7 codicils' during her last years  slowly eroding my share  leaving me fiscally impoverished   secretly  to  trick  me into indentured servitude  only  letting me know my  security  was stolen underneath me  as if  Bernie Madoff stole my retirement account,  I was not even eligible to get Social security  etc as a result of years of caregiving, I was forced to fight my family  who did nothing to help me  and sacrificed zero a sI did  and I ended up getting most of my money  but  the lawyer got  1/3  so I lost  more than 1/2  what I was to  get  and need, I discovered I had cancer of my kidney  during the probate battle  and they fought me for years  hoping I died first, I wanted to die  the betrayal  and lack of respect  for a job well done was extremely hurtful,l as if I dropped my wallet  and they kept what they could by law
My little brother Scotty killed himself at age 26 a few months after our Stepmother accused him of raping her several years earlier.
This I knew was absurd, she had been inappropriate with me for decades, she would "accidentally" be caught masturbating ,doing it where we could or usually would see her, she would act oblivious but one time leaves on the ground were really noisy  plus I set the alarm n the main house when I left it to go to the guest house where I stayed and that required walking past  their bedroom's double wide glass slider doors, if anything she sped up, her hand became a blur  so  no  doubts  she was purposely exposing us to this extreme exhibitionisim, she used to say she bets I would be a great lay,  things like that, she even told me she would miss her 3 dogs more than him!
To top it off she was a bigwig with the State of California DHSS, she was one of a bunch who got together in Berkeley  and designed the programs they then implemented  and the remaining 49 states all accepted as the way to run CPS, they then  go around the country  to nice resort like places where they teach other sates employees how to implement California's CPS system there, if anyone was a conduit to a pervert network I used to think she was one of them.
She admitted to me that Foster kids by age 18 are often in prison  or dead  by 2 years  and many simply vanish  with nobod able to locate the kids, in fact  when the migrants were separated from the parents  recently   and then  were ordered to return the kids  to the parents,  I knew  beyond a doubt they  could not do so  even if they tried to  and sure enough   they were unable to locate  all the kids.
My Brother's suicide blindsided me, it completely derailed my life, I started snorting meth, smoking cocaine, weed, LSD, mushrooms, peyote, mescaline, PCP
I even tried heroin a few times accidentally, I became a drug dealer , gun smuggler, misogynistic pimp, started fighting anyone who crossed me and  at age 31 became a felon which is not typically the age this happens in life, I took a radical left turn for about 15 years  and to this day  am  still enduring the loss of my little brother in this way,  never do this to someone who loves you.