Like Nana, I hunt in the relic mode 99% of the time. I like using the tone that mode emits. You might start off using the coin mode, to learn the numbers, like I did. Then you will have a good idea of what is below the ground, using any mode.
GENERALLY in normal soil, this might help:
zinc penny = 67
copper penny 77
nickels 18-22
dimes 77-80
quarters 83
Pull tabs run all over the place.
Gold rings are like pull tabs.
Silver rings will give a good, high number.
GOOD LUCK! You have a great machine!