Confronting My Mother - Advice Pls

For the past ten years, my mother has been cheating on my father with multiple men. I was probably 12 when it all started and I immediately knew what she was doing and it was wrong, but I kept my mouth shut.

My parents have had arguments, but my mother has this manipulative side of her that’s just annoying. But recently, this pas year, she’s been doing way too much more. Speaking loudly over the phone, sometimes not coming home or coming late. The worse is spotting her car in places when she’s supposed to be somewhere else or hearing the voices of men.

But yesterday, she did something extreme and pissed me off. She brought home a man, between 4:30am to 6:30am. She even covered the ring door cam. Right around 6:30, I was standing by my room door as they were walking in the hallway towards the door. Just imagine, if I caught them! OH AND MOST IMPORTANT DETAIL, MY FATHER WAS ON VACATION!

I am utterly lost on what to do. I can’t sleep just thinking about. I have completely lost faith, trust, and respect for my mother. I just don’t know what to do in this situation. sorry for the rant.