Are you on medication? This can help to stabilize you when in crisis mode.
I am afraid DBT only works if you can separate yourself from events and look at things objectively. This is what DBT is, a method of thinking. Borderline treatment requires a massive overhaul of your entire life. I really understand how much work it is.
Here are some things I did:
I worked on my sleep issue (two children under two. Being rested helps). I did sleep hypnotherapy free online.
Meditation - free with an app
Mindfulness - free from many resources
Exercise - Bikram yoga to rebuild my mental and physical strength
Journaling everyday to write down how I feel, how I perceive things. Reflecting on what is good.
Intensive DBT - not just with the therapist but at home with the medical textbook
Read everything you can find on borderline
For as long as it takes, no alcohol (as this can make me upset).
Go for relationship counseling.
Make a plan, set a goal, as an individual, as a couple and as a family.
This worked for me. You have to be relentless with BPD. It's hard but it is worth it to live life with less stress, less raw pain and more harmonious relationships.