Hi At_My_End,
Your post reminds me so much of my first post here when my udd was also 14yo. My homelife at the time was a living h#ll and I honestly had the same thoughts of either one of us having to leave home at the time. My overall advice is take it one day at a time because it is so easy to get overwhelmed and thinking of living that way for years to come is just so overwhelming and depressing. These are the things I did that didnt take a whole lot of time or money.
Reading up on the behaviours will help. whether your udd is dx'd or not its the frequency of the behaviours that count.
For instance the lying... I felt that I could never have an honest conversation with my udd because she lied so much and I would get so worked up over it. We would go back and forth about it because I knew she was lying but she would NEVER admit to it. Morally I felt it was wrong and felt frustrated about it. What was the purpose even over trivial stuff? I just wanted her to admit it. Even with proof she wouldnt admit it, but it wasnt until I read that lying is a part of the behaviours associated with Bpd that I was able to be not so invested in getting my udd to tell the truth and honestly my stress levels and b/p dramatically improved.
Applying boundaries also improved life and were important for me even if udd didnt like them. She rebelled against them but I stuck with them and once I started enforcing them we both knew that there was no going back
I also kept a diary around this time, but it was difficult to keep up with it as so much would happen in just one day, but it was there for me to record my thoughts and feelings. I felt that I had literally worn people out by talking about udd so much so put it to paper. It will also be a great way to look back and see just how far you have come and how you are much stronger and more resilient than you think you are. My udd is 31yo and her teen years was the N01 worse period of my life (so far) but taking it one day at a time will get you through it.
I hope dbt works for your udd. My udd wouldnt try anything so their is hope there if she is willing.
I also think it is worth seeing a therapist of your own or if you can be referred by your gp for mental health support.
Also making the time to focus on yourself is very important too. I found I couldnt concentrate to read a book if it wasnt about Bpd, but I found long walks very therapeutic at the time.
