If you are running it in your own yard, take a deep breath and hold all judgment until you get out to a soccer or football field.
Personally, in my yard, there are so many buried cables and overhanging cables that it drives my detector NUTS.
Out in a field you won't have too much trash, and you'll be away from a lot of power lines... hopefully.
Set the sensitivity to 20... lower if it's beeping kind of erratically... but there's no sense in trying to run it too hot when you are just learning the sounds of the machine. You'll go for deep stuff once you first understand what you are hearing.
Try using Manual sensitivity if Auto still sounds blipy... I always run Manual on the SE Pro.
Try just an Iron Mask of 27... out in the field you shouldn't have much of a problem with TOO many targets so this semi-all metal mode shouldn't be too bad.
Obviously you are going to want to lay out some coins and hear what they sound like.
If you are going to be a coin hunter primarily, I would stick with CONDUCT sounds starting out.
Keep the coil low and level to the ground, and sweep at about a 1-2 second per sweep rate. Slow down if you are hearing a lot of blips still.
You could dig everything you hear, or you could try to concentrate on digging certain pitch sounds. Learn what a penny sounds like and try to just dig those for awhile, then switch to quarters and try those. Then maybe listen for the low tone of the nickel, and try to match up the numbers for nickels. Stay away from the really high shreaky tones that are above the sound of a quarter until you get your feet wet.
Hopefully this gets you going in a positive direction
Brett