Other Fuel System Tank Mounting problems of the 2014 Chevrolet Malibu

I've been having issue with my car slowly but surely. First my solenoid rocket went bad after a 1yr of purchasing the car that came with 40,000 miles. A year after that I was running errands one day, pulled out of a strip mall and my car started lightly shaking for a minute til it came to a stop and wouldn't start. Ive called my insurance provider for road assistance and gas, thinking I was low on gas than normal that could be the problem. I've received gas then proceeded to starting my ignition 3 to 5 times, it never crank and ultimately the key stop switching and I could only turn the key to on position not start. Displaying on my dash the message steering/power drive with care! gotten my car towed to my personal mechanic, he told me my fuel pumps were bad because of substantial amount of water found in the tank system, that I needed to purchase two fuel pumps and 4 starters for him to complete the job. No longer than 5 til 6 months after completion of the last repair im now experiencing problems when starting my vehicle my engine light came on, again a message on my dash displaying steering/power drive with care! once I shifted my gear in drive while my foot still on the brakes, the light of the gear switches kept jumping back and forth rapidly as if the gears were being shifted manual and the car moved liked it was responding to the rapid gear changing as well lucky I had my foot on the brakes during that incident. While driving my car seemed to switched gear, in mid drive on an express way which caused the car to slow down instantly as if I pumped the brakes. That happened for 30 secs or less then it responded back to the initial shift it was originally in on its own. At times my car moves and jerks forward when I shift my car in reverse. Still ongoing every so often my car moves and jerks forward multiple times while shifting into gear til this day.