I have known you on here for yearsss now.
My none Psychiarist opinion of course.
You have :
BP1 which is always agitated this can last weeks... you go from somewhat stable to bad in about 2 days. Then you crash into a ugly depression.
Borderline? Yes ... you react hard to family drama with husband , son, parents etc.
Panic / anxiety
Eating disorder
Self harm
Do I think DBT will help ?!!!! .. loud YES ! In fact I think DBT workbooks can help most anyone with BP..
Now all of the above doesn’t make you “non help able” It means you need to commit to follow through.
Take you meds no slipping or fooling with doses.
Force yourself to work hard with DBT
Use holding ice until it melts instead of actual cutting , trust me it works ( I haven’t cut in coming up on 5.5 years, I was a daily cutter)
Stop using headphones to check out , your family deserves you to be a active part of the family. Be present even when you don’t think you can.
Miguel needs you to actively help him with his MI issues and school work Set some time that you just spend with him one on one.
Also lastly ... your husband loves you or he would have left years ago. Show him he matters to you, maybe he feels you no longer care for him like in the past.
Go outside daily !!! You need the sun it will perk up your mood.
So yeah my non psychiatrist opinion.