Why do I always like to get people's attention?

When I'm at home or outdoors, I always want people to look at me and praise me and not just look at me like that, but like ''WOW.. CHECK THIS GUY OUT'' I always look in mirrors to make sure Im in my best shape and usually I go out of the house to get people's attantion. I always go back home if I never manage to do that because I feel like theres no point in going out if the spotlight is not on me. If I don't get people's attention with my looks sometimes I do other things that grab people's attention. How come I always do that!! I'm always like ''LOOK AT ME EVCERYONE!!! LOOK!! IM HERE HELLO!! IM AN ATTENTION WHOOOORE>>>!??? LOOK AT MEEEE"'' (of course I dont say that literally, its just in my brain lol)