How can I toggle left click?

I wanted to farm in minecraft afk on a cobblestone farm without having to left-click myself so something like toggle sprint only for left-click someone knows where you can get something from

Search for a program on the Internet or build a construction from 2 pins and rubbers.

Glue one pen to the button, the other under the mouse (with tape or whatever)

then you take a pair of rubbers and tighten the pens until your button is always under pressure so that it is toggled.

Hold down the left click while pressing F3+ T and release the mouse as soon as the Mojang loading screen appears.

Always works

Just put something on the left mouse button
xD