There's a lot of good advice here, including to look inward and see if there is some reason you didn't get that job.
But back to you. There was money to hire another person, so why wasn't some of it passed on to you? If your dad is taking advantage of you because you are his son, that doesn't pay the bills. Keep your professional and personal life separate and move along. I don't know what kind of demand there is for your skills, but $13.50 isn't much for any job. If you can't find anything local that you can apply your talent to, then maybe it's time to move to a bigger city.

Seriously, if you want to roll around in cash, do what Radar said and go to North Dakota. You will get flat paid. A buddy of mine went up there to work at Walmart and got better than $20 an hour and his housing paid for.

And if you don't want to work for an oil company go work for a farmer. All their help left for the oil field.

Yeah, there is a lot of money to be made, if you can stand living in shitweed ND.