AIO for wanting to break up with my girlfriend?

Last night my girl took an "ecstasy" pill and stayed out all night and didn't come home. I no longer want to be with her because I feel like she lives too reckless for me. She is already scheduled to go to jail for 15 days regarding an OVI and last night to "celebrate" having to go sit in jail she decided to get high and wasted. I just got my life back on track honestly. For the first half of my adult life I was a screw up. Now I'm making 50k a year after taxes and am working to fix my credit to buy a home. She has three kids which aren't mine btw. I've been trying to motivate her. I pay all the bills so I allowed her to quit her job so she could focus more on herself and what she actually wants to do with herself. Instead this is what I'm dealing with.