2000 Other Saturn Models car shut off and will not start

Hi! I have a 2000 Saturn LS2 we have recently replaced the Crank Shaft position sensor, the water pump, the tension pulley, and the belt, twice. All within the last three months. After the car running great and no problems I was driving on the interstate the other day and all the sudden lost power in the motor, I looked at the RPM to see if the car was still running and it was but the needle was going up as far as 3,500 and back down to 2,500 with the check engine light blinking, as many times as my car has stalled when the CSP sensor was going the check engine light never blinked, just came on until the problem was fixed. I immediately got off the interstate and as soon as I came to a complete stop the car shut off and would not start. I've had it put on the computer and the only codes I'm getting are the CSP sensor, again, and the Cam Postion sensor. Checked all fuses and everything is fine. When I try to start the car it will turn over but will not crank. Please help me figure this out before I pull me hair out. Being stranded in the house with 4 kids and no vechicle I'm about to go out of my mind! (Hahahahahaha)
thank you