Car Stall problems of the 2007 Ford Mustang

Both issues I have had with my car numerous times. The engine light has never come on and through research, I guess it has happened to many others. When in traffic moving slowly, warm temperature, my car stalls for no apparent reason. Today, it did while turning left at a corner. I almost got hit. I have to immediately shift to neutral and restart the car. It happens during rush hour so I end up making other drivers angry which is dangerous. The other ongoing issue I have is the car accelerating by itself. This has been happening for years and has got increasingly worse. I now have other witness' people who have driven the car and had it happen. At midas where I get my car repaired, they drove it and couldn't figure out the issue but definitely scared him. The mechanic thought it is computer related. They tried to find a fix online but couldn't. Someone hit my car and it was at a shop being repaired for 2 weeks. This is a very large operation. When I went to pick it up the mechanic there said that everyone, after driving my car once, refused to drive it again. It scared them to death. She explained how it kept accelerating and they didn't even have their foot on the gas, there were no car mats, no explanation. They will have their foot on the brake and it will start reving. When I'm stopped at lights it does. When I start the car, still in park, it starts. They stated they don't ever want to drive and/or park it again. They said it was very dangerous. I know Ford denies the issue but this is all over the internet. I don't know what to do. I am aware of the issue so I drive it like it's a stick shift in traffic and always have my foot ready for it to accelerate. I can't afford to buy a new call and would not feel comfortable selling it to someone. I do not want to put someone's life at risk. I know someone has to die for something to happen but this is a major problem.