Hi @Jem1 I don't have BPD but am doing the DBT program. It is a really great program that can help you deal with your emotions and learn ways to regulate them. Much of what we go through in each module is not foreign to us but it puts it all into persepctive and allows us to work throuogh specific skills each week. We naturally find ones that work best for us and in time *and with practice) they become more second nature.
I am currently on my second round of modules - the first couple of modules I didn't take much in at all but persisted and am now getting a lot more out of it. Whilst it is a course targetted specifically with people with BPD it is a course that is (in my opinion) beneficial for anyone who has strong emotions and finds it hard to moderate them from the extreme ups or downs. It has been most beneficial for me in learning how to cope more readily with the 'downs' and finding ways to adjust both my thinking and behaviour when confronted with things that would previously completely floored me.
If you are thinking of doing the program then I would highly recommend it. Sometimes these programs are not for everyone but if you find an empathetic group that you can be part of with this program then you also begin to make connections with people that are going through similar things as you.
I am going to tag in @Sans911 as she has done the course as well and @Snowie who is just starting it.
If you have any further questions then feel free to ask and I will do my best to answer them 
Thanks for the tag here @Appleblossom Hope you are travelling okay as well Hon 