Hi Jessica, If you honestly stick with plumbing and learn as much as you can you can make a great living. My top mechanic I was paying $55.00 per HR in the envelope for a 35 HR work week.
There are no short cuts unfortunately and what you put in you get out.
Once you decide to start a 5 year apprenticeship you can decide what if anything you would like to specialize in after graduation.
If you have any questions please feel free to E mail me Or if you would like After you decide to take the plunge I would be more then happy to bring you on my plumbers list which happens to have not only plumbers but drain cleaners and HVAC folks plus manufacturers and one Lady who has over 25,000 EMPLOYEES under her direct supervision. Hey its something to think about.