And you're off!!!
Welcome to the hobby

Never used the 1500, but, it's considered one of the top of the line machines, so, I think you'll do pretty well.
Couple of thing to keep in mind...
First, have patience. A LOT of it. This game is just like fishing. Gotta give it time. Also, gonna have good days and bad, but, if you enjoy the pastime, you'll ALWAYS have a ball.
Second, I'm sure most people (including myself) had grand visions of instant fame and riches when they first purchased their metal detectors. Well, you have a better chance of winning the lottery

I've found some great things sometimes worth quite a bit, however, it doesn't happen on a regular basis. So, enjoy it when it does happen.
Third, make sure and learn your machine. Practice anytime and everywhere. Learn what every button, switch, control and setting does. In the beginning, try and dig most any signal. Just to start training your ears and to begin learning what the VDI screen is reporting. Take notes if necessary. Really listen. Take your time. Go slow.
Finally, if you're after anything old, you MUST go to old sites. Preferably out of the way ones. Your local park, the neighborhood schoolyard, etc. are great places to practice or kill some time, but, you'll rarely find anything worthwhile there aside from clad and the occasional piece of jewelry. A good rule of thumb is...Make sure the site is AT LEAST 70 years old. If it's jewelry you're after, try the tot-lots and beaches. That'll be your best bet.
Make sure to read and/or post if you need help with anything. Us know-it-all's sometimes do get it right

Most importantly, find some keepers and enjoy yourself!!!