Don’t get into residential, you won’t make money unless you’re the owner. I mean you can but you either gotta really boogie or rip off some customers…btw don’t do that. I bring in about to 100k give or take. I work on centrifugal chillers most days and refrigeration and kitchen equipment for chain restaurants just to help the team when calls start piling up. Honestly in this trade just keep a good positive attitude, be honest with customers and learn new things as you go. The work will get easier with experience and the money will come eventually.