Seems like the hard way to see the world.

Assuming you have a private license with complex and retractable endorsements. Then the next step is to get your instrument rating, multi engine, turbine and commercial ATR rating and at least 800 to a thousand hours as PIC (Pilot in Command). By now you have spend over $50,000 and might be employable as first officer for a small low budget commuter line at a couple of G's a month.

Is it worth it? That's up to you. I have over 4,000 hours in single and multi engine prop and jet aircraft. I own and fly a Beech Baron which is considered to be one of the more challenging light twin engine planes. I do not consider myself qualified to be an airline pilot.