@lakatide I can appreciate everything you’ve done as a single mom and I applaud you, it’s not easy.
You place a lot of emphasis on what you’ve given her but you’ve missed what she needs. She’s been abandoned and devastatingly let down by one parent, the last thing she needs is to be abandoned by you too. I see it suggested in the comments to express your disappointment, I don’t think that’s necessary, she already knows. I know this is hard to hear but I want to drive it home, your daughter hates herself and she feels unworthy of anyone’s love. I was her as a kid. A shitty dad will do that to you.
I suggest walking into her room and giving her an unexpected hug, then sit down, be human with her and discuss all of the things that have wounded her deeply. Acknowledge her pain including any pain you’ve inflicted. Whatever you do, don’t defend yourself, just hear her and apologize and reassure her that you’d never intentionally hurt her. Your daughter needs to be seen and heard without any of her flaws being pointed out.
Explain to her that she’s smoking weed, having sex and making poor choices to fill the void of her dad and mask the deep pain. Explain that she’s doing it because she’s not yet equipped with the tools she needs to fix it. These problems have always been way too big for her and it’s unfair for anyone to expect her to navigate through it alone.
Tell her you see her pain and self loathing. You know her heart and you’d like to make some changes to build trust and a new relationship together so you can work through this as a team. Then take turns discussing what each of you need from the other to build a better relationship. Keep the whole thing positive.
One of the best things I ever did was get real with my kids. I stepped out of my mom role and humbly approached them as another human being who understands pain, acknowledges my own terrible flaws and is willing to do whatever is necessary to build a trusting relationship so we can get through the hard things together. Exchanging (not comparing) stories of suffering has been helpful too because it’s relatable and sometimes eye opening to our kids.
Also, make it a point not to lecture or become angry when you’re talking. I like to treat it as more of a discussion where I mostly listen and it’s a new way to get to know my kid. I’ll throw in a fun memory or qualities that I admire about them and let them know that it’s one of the many reasons they’re loved.
It’s a matter of keeping the communication going and your own willingness to be open and honest. With some work and time you may be in a better place.
Also, you can point out that her actions have natural consequences that aren’t enforced by you which should scare her because you have no way to save her from it.