Any tips on how to drive in the US?

Few pointers: if you're staying in NYC - don't rent a car until you're ready to leave, and then see if you can get one by a train station outside the city. A station like Metro North-Stanford CT has a few car rental locations right by the stop. MetroNorth (train system running north out of the city) can be a few bucks on off-peak hours, and honestly isn't bad even on peak. Download MTA's app - TrainTime for time table and to be able to pay. Not all stops are walkable areas, so you'll want to figure this out well before you leave. The Subway system in New York is extensive, works really well with Google Maps. They got rid of tickets, so you can use any credit card with a contactless payment feature or tap and pay - OMNY is the name of the program, so you can look up specifics. If you card charges additional fees for US transactions on a per-transaction basis, consider getting a pre-loaded credit card to avoid that, or just get the OMNY card at any subway stop from a vending machine (they are like a buck). Once you're out of the city, where you're heading will really impact how bad driving is. Route 15 is narrow and fast with that terrible combination of New York aggressive drivers and oblivious suburban ct drivers. Interstate 95 gets backed up really bad sometimes, but is a standard highway so probably easier as you're getting used to it. Keep in mind, in CT and NY, holding your cellphone while driving can result in a ticket. If you're using your phone for directions, you will either want to use Android Auto (or the Apple CarPlay) or have a cradle to hold it. I know Italy is very similar in its laws so you should be fine. Speeding is ticketed, but generally not if you're going 5mph over, or even 10 for some camera systems. Generally, travel with traffic, since going a lot slower can be dangerous and you probably won't be ticketed. There will always be assholes weaving through traffic in that area, so just try to ignore that. When booking a rental car, make sure you know if your rental company has a fee for driving under the age of 25. Some can be expensive, so if you're staying more than a few days you really want to pay attention to what companies charge this, how much, and if you can get out of it (Hertz used to waive it if you had AAA for instance, which is $65 a year, as opposed to $20 a day (when I did this decades ago), So at day 4, AAA made more sense.). Check if the company wants you to have an International Drivers Permit. I don't think it's required, but it could be helpful if you do get pulled over regardless. Lastly - when you get to your family members in CT, make sure you understand what the parking rules/laws/situation is. A lot of CT is the suburbs, and parking won't be an issue, but if they are in New Haven or one of the other cities, it might be trickier. Non driving related - I know you're from Italy, so it seems insane to suggest this, but get the pizza while you're in New Haven. New York Pizza can be great and all, but New Haven is going to be the best if you like brick fired, thin crusted pizzas.