Get a good experienced friend to show you what to do. Do not listen to the advice to "dig everything". Dig what you KNOW is good, which is very little these days. Metal detecting takes 100+ hours to learn.
If you do not have someone to show you the basics, digging everything will be your only hope, and it's only going to be a big lesson in futility. If you do not have an experienced friend to show you the basics, you have a long row to hoe. You will have to learn your machine, AND metal detecting, all alone. Its like learning to talk, then learning to read, then learning to write, all by yourself. It wont be easy without a good teacher.
I cannot believe that these guys are telling you to dig everything. They don't dig everything, so why would you? Only dig good repeatable signals, which is THE FIRST RULE OF DETECTING, and if you don't know what that means, you are in trouble.