Welcome Searching4peace!! This site is for whatever you need. You may share as little or as much as you want or need. The only thing that you need to do specifically is add a trigger warning to anything you might want to discuss that might trigger someone else.
You will find many warm and caring people here. There are plenty of forums for you to check out. Some that deal with SI, addiction, relationships, etc.
I have not been able to share my story here as of yet and I have been here almost a year. Having been in counselling for 7 months I can understand your feelings of it being har