Welcome to the metal detecting hobby!!!
I am not familiar with eustis, so I will have to give you some general tips.
First rule is, where ever large numbers of people gather, they lose things.
Keeping that in mind, if you can find any large grassy areas that people go to for picnics, parking, outdoor concerts, beaches, succor fields, football fields, schools, play grounds and county parks. These are a few good places to start hunting.
Also keep in mind that any old home may have many items to find. But remember to always get permission before going on private property. You may have friends or neighbors that own older homes and will let you detect their property. Be sure to read up on recovery methods to minimize damage to the lawns. I use a probe ( ice pick, with the point dulled down) to find objects and a small garden trowel to dig the item up. Some people use a screwdriver to pry the item out of the ground. You will have to experiment to find what suits you.
The grassy area between the sidewalk and the street is normally owned by the city and you can normally hunt there.
Camp grounds are a good location to hunt also.
I'm getting a bit long winded, so I will just say Happy Hunting.

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