<human>: Hey. Been seeing some traits in my girlfriend lately that I don't like. I recently found out that she was one of the 'hot' kids in high school. One of the ones that smokes weed, drinks a lot, has sex a lot etc. How do I know about this? She told me! Now I don't care what she did in her past, but she still has the same mentality. She is constantly getting drunk, even on weeknights, and it's really starting to bug me. Her personality totally changes. 

Do people grow out of this childish behaviour? She's totally self concious and has low esteem, and even with all the compliments and attention I give her, she still seeks it from everyone else. 

I can't put up with all the drama any more, and she thinks she can say and do what ever she wants. 

What's the best way to tackle it? Thanks

Can you succinctly summarize the text in 1-3 sentences?
<bot>: girlfriend still thinks she's one of the cool kids in high school, can say or do what ever she wants without respect for anyone. Starting to affect the relationship