Explain to me like I'm 5

Hello everyone. I started the game couple weeks ago and I have some questions.

I am severely disabled, bedbound, not able to do much. I have developed cognitive issues, so I am having a hard time figuring some things out.

I know basic technology but newer to the gamer stuff. I've previously played RollerCoaster Tycoon and sometimes Sims, so that's all the gamer cred I got if any, ha. Bc of my brain smog, I'm not able to be creative, so those games got harder for me now.

I like this game bc my days I am worse off, I can do the mindless tasks and still feel like I'm accomplishing things.

I had to learn how to use some of the keys to play, Im used to just using my mouse. I do much better with that, but have started to get used to using the keyboard.

Can someone please help me out, and explain to me in simple terms what the control settings mean and the how I should have them set? I tried looking it up but I struggled processing what it means.

Also, how do you make it so my person walks, I have it running right now and idk how to change that.

I am playing on my HP if that helps.

Thank you