Are you aware that most human accountants use ... tax software?
I assume most experts in their field use software that is relevant to their field of expertise. I also assume they use it more effectively than I would, given the fact that I use the software relevant to my profession far more effectively than a non-expert possibly could. I assume I'm not a special snowflake in that regard, and thus this is a reasonable generalization.
If you spend a day studying tax law and reading your software's manual, you will save more money than you earn at your job in a month. It is time well spent.
Wrong analysis. If we assume (and this is a big assumption) that I save as much as the professional I could hire would, then it doesn't matter how much I save, it's the same either way. If doing it myself is going to require me spending a day studying tax law, the relevant question is, will it cost more or less than a day's earnings for me to just pay someone else do it for me? If you get paid enough, that seems unlikely. The time would be better spent doing your actual job, and using the money earned to pay the accountant.