I have been unable to unload my wheat. I have driven up on the silo "dump" side. directly in the middle... slow.. nothing happens. I went to another place to try to sell, drove up on the unload ramp... nothing. What am I doing wrong?

Hi all... Sorry for being dumb here. I have played Farming Sim 17 on my computer. I wanted it on my switch. I have Farming Sim20 on my switch, and I get in the combine to harvest the wheat (first step) and I don't want to hire a worker. I want to drive it myself. I can't figure out how to lower the ...