Awesome...forward movement is always the right direction.
But speaking about piss and shit, I am in all lines of plumbing and HVAC. You know all them IT guys need to shit and piss right? Well, I've raised a family, got 2 boats, go on nice vacations, money in the bank and fat steaks every Friday!!
Don't write off piss and shit...I charge by the hour, one hour minimum and half hour increments....some days I can charge 10 hrs on and 8 hour day.
You need to remember 3 things to be a good plumber.
1. water flows down (pitch is important)
2. Payday is Friday
3. Don't chew your finger nails...
Good luck in all your future endeavors...the world needs plumbers.