My teeth have gotten bad and I’m disappointed in myself

I’ve noticed I have cavities forming in my front teeth and today I went to floss and a small piece chipped off. I cried for about an hour and now I’m starting to realize how expensive this is gonna be. I always had really poor dental hygiene as a kid and got much better as I grew up, but my parents weren’t great examples. They both have addiction issues and their teeth are either non existent or fake now and I’ve always been horrified my teeth would be the same. I’ve never done drugs but I had a lot of trouble with eating disorders and I was addicted to soda throughout my childhood. I haven’t had dental insurance and have really been struggling with money since I moved out at 21 and haven’t really seen the dentist in over 3 years. I had braces as a kid and I feel so guilty for letting my teeth go because the orthodontist donated them to me and I know not everyone gets such a generous gift. I just feel so sad and angry right now, and I know this is a safe space for me to project lol.