It's a job. Most people don't have jobs that'll make them "rich". Be glad you aren't living paycheck to paycheck, or worse, are unemployed because the job you had was optimized away with computers.
To be blunt, there's a sense of entitlement evident, here, that I have trouble grokking. You get to spend all day in a comfortable office working with no more than your hands and brain making double to triple what a day labourer pulls in with a hell of a lot more effort.
And your complaints are, what, you have to hammer someone else's nails, the work is repetitive, and it isn't a fun party every day while you amass untold riches?
Look, I get being dissatisfied. Humans love looking at that greener grass on the other side of things fence. But appreciate what you have. Seriously.