Always go back to the last thing you did - which you attempted to do a couple of times. At that point you should have hit the books and requested help but no, let's do the same again and expect different results. All of us make mistakes, it's the ability to quickly realize it and possibly save the mess that's important. A simple plug change should never end up with an engine running worse. And honestly I have had plugs out on a number of these engines and with a little observation and care, mixing up coil pack wires is a bit hard to do. Not impossible of course but I would have looked for a vacuum line knocked off or a sensor connection askew too.

 

If you are a college student without a full time job you bought the wrong car. Most parts are at or near end of life and very expensive. Buying cheap non oem parts are going to cost you lots of your wasted limited funds.