I'm going to do my own payroll and always add extra hours that I did not work
Why are you adding extra hours to your payroll?
I want to squeeze as much money as I can from the company, so company pays me as much as possible.
Lying about your hours for more pay isn't just unethical, but illegal as well. If you didn't do the hours, you shouldn't lie to get paid for them.
It's not a big deal. I just want to make as much money as I can.
You will get caught and you will get fired. If you want more money, then you need to work more hours.