Jupiter isn't just the "lucky" planet

Jupiter stays in a sign for a whole year, so it's shared by a ton of people your age. The house it's in makes it personal, the sign is the vibe, the house is where it shows up.
Wherever Jupiter sits, you get more of everything, including overconfidence. Ancient astrologers called it the "Greater Benefic," but even they clocked that it can inflate things past where they should go.

Examples:
Jupiter in 3rd house - you talk your way into rooms you had no business being in. But you also talk yourself into stuff you didn't think through.
Jupiter in 1st house - you may attract a lot of lucky circumstances, your may look like you’re a resourceful person, like you have some sort of authority.
Jupiter in 8th house - there’s always may be a way for you to avoid crisis or potentially risky situations, at the same time there might be too much confidence so it is important to give yourself a reality check.
Jupiter in 4th house - classic luck through family and home, often getting support that looks accidental but really isn't. At the same time jupiter may bring a lot of chaos to your family life, so that’s the other side as well.