2012 Dodge Journey cruise control problems

I was driving at 830pm and had at least 120 miles on the same road and set the cruise control to 68MPH, the legal speed was 65MPH and there was light traffic. As my car approached a small hilly incline, it failed to maintain the 68MPH, dropping to 60MPH, and then upon reaching "the top" it accelerated rapidly reaching high rpms roughly 5500 6000 and over compensating to as much as 77 before slowing down to the preset speed.

My vehicle has been constantly stalling out while in motion and it is unsafe to drive. My vehicle also picks up speed randomly without excelling the gas pedal. I have a family of five and due to this issue we are having to borrow other vehicles. Its sad that dodge has not done anything about this issue as I see 100's of people have been making the same online reports. I have one year left on this vehicle and was so happy until this issue arose.