Greetings DeeeSchmeee68,
I have a ton of experience with this as I had a seven-to-eight-year struggle with my son. For multiple years my wife, daughter and I endured verbal abuse, threats, stealing, embarrassment, etc. etc. etc. etc.
There is no magic pill for this as every situation is different with untold variable at play. We sent my son to several programs for weeks / months at a time and I would argue he would only return more brazen and disrespectful. When he turned 18, we kicked him out. One of the hardest decisions I ever made but I wanted to live in a home, not a battlefield.
I wish you nothing but the best and peace and comfort.