How can I become like one of those people who lights up the room?

Well it doesn't work like that, some people have more charisma than others. Like something general... Try bring friendly but not too nice

I'm not sure Jupiter.

But you can borrow some cash from everybody in the room and don't give it back for some time. so the next time when they see you they all surely gravitate.😅

just be yourself. people should like you for who you are, the ones that gravitate twords you are the ones worth being friends with.

To be loved, be loveable.

Find a Leo, copy them.

I think little things you can do is stuff like saying people names when you talk to them, making other people feel good, being enthiusiastic (key part), asking people questions about themselves because people love to talk about themselves.

I think you seem lovable. Maybe the people you hang out with are assholes.