2008 dodge charger, 2.7 wont start

2008 Dodge Charger, V6, 2.7 at first delay starting to now not starting at all. However, a week ago, I went to make sure windows all closed because of predicted rain and the car started right up, I drove about a block and parked back in driveway and it would not start again. I hear a crank like its coming from the trunk and all lights and radio work. This time I tried for an hour before giving up. I notice the zig zag light stays on (the owners manual say that signal is the electric throttle). The very first time it happened and wouldn't start, I had it towed to dealer, cost me 879. to have a new key made because they said the computer chip and key miscommunicating. I am on fixed income and can't afford to keep putting money into this car. Down to my last 8 payments. The check engine light stays on most of the time. Had that checked by dealer, autozone, they all say no problem with engine. could it be an electrical shortage. Everything seems to go wrong on the passenger side, e.g., bulb replacements front and back always on right side. Once the window got stuck down on the passenger side and then after an hour, it just went back up. I have 86,000 miles