If you have a good salaried job, that's your ticket to differentiating your career. As others have said, save as much as you can and that brings options. You could research threads here for arcade owners past and present, Sarah at Pinball Wizard (closed down now) might be one to give you advice if she is willing. She is no longer an arcade owner but has a pin maintenance business still. Dave & Busters seems to be doing really well, I do not know their business set-up regarding contractors for the machine maintenance but managing a Dave & Busters and introducing pins seems interesting. Just an idea, work there part-time maybe at first. That place is so loud though you might go deaf. The current winning business model seems to be barcades subsidising the machines with alcohol and food sales. At 19, not sure how that would work. Regarding high end pinball restoration, I would message guys directly, you can find them here.