Where you want, I took as example
Usually your website is in :
That's why I call it "out of the web structure"
These say when to run it. You should find easily documents for the syntax for this. In my example, 15 16 * * 1,3,5 means "every first, third and fifth day of the week at 16 hours and 15 minutes".
*/2 * * * * means "every two minutes"
home is always home, but user has to be replaced by your user
Yes, but it's your choice
You log in, and then you type it as shown, but after replacing 'user' and 'mydirectory' with your own data
I understand because I've been there. And that's why I'm here trying to explain. After your first success, you will find it very easy, believe me : I've been there