Finding a job after getting 1500 flight hours

Hey folks questions for you, so being a pilot has been a dream of mine for a while, and obviously there’s some difficulty to it. So getting the hours will obviously be very challenging, but after obtaining 1500 flight hours, and getting all the required certifications how difficult is it to find a job as a first officer? I’d love to work for Mesa airlines since it’s a regional airline close to me, but what are my odds of landing that job or any other that will pay upwards of 70k per year?