For the past three years I have filed my taxes myself, and every single time I make a mistake +- $100 or so, the IRS sends a correction, I fill out more paperwo

For the past three years I have filed my taxes myself, and every single time I make a mistake +- $100 or so, the IRS sends a correction, I fill out more paperwork and send payment / receive refund. Y'all know this is inefficient. I spend at least 20 hours of work filing my taxes each year, and as a fairly intelligent citizen I always make a mistake anyway.