New at this

I am trying to get my email set up on my phone, it is asking me things I have no clue…
First is it IMAP or POP? this is my email thru dreamhost…and I dont even kknow this.
I chose POP is that right?
then it asks me SErver… then Port… the use SSL dont know what that is so I dont know if I use it. Ugggh I need someone smart to help me LOL

Which phone? I use IMAP on my iPhone. Here are some typical settings: